id	sid	tid	token	lemma	pos
ajst-30189	1	1	academic	academic	ADJ
ajst-30189	1	2	journal	journal	NOUN
ajst-30189	1	3	of	of	ADP
ajst-30189	1	4	science	science	NOUN
ajst-30189	1	5	and	and	CCONJ
ajst-30189	1	6	technology	technology	NOUN
ajst-30189	1	7	issn	issn	NOUN
ajst-30189	1	8	:	:	PUNCT
ajst-30189	1	9	2771	2771	NUM
ajst-30189	1	10	-	-	SYM
ajst-30189	1	11	3032	3032	NUM
ajst-30189	1	12	|	|	NOUN
ajst-30189	1	13	vol	vol	NOUN
ajst-30189	1	14	.	.	PUNCT
ajst-30189	2	1	14	14	NUM
ajst-30189	2	2	,	,	PUNCT
ajst-30189	2	3	no	no	INTJ
ajst-30189	2	4	.	.	NOUN
ajst-30189	2	5	3	3	NUM
ajst-30189	2	6	,	,	PUNCT
ajst-30189	2	7	2025	2025	NUM
ajst-30189	2	8	136	136	NUM
ajst-30189	2	9	structural	structural	ADJ
ajst-30189	2	10	design	design	NOUN
ajst-30189	2	11	and	and	CCONJ
ajst-30189	2	12	analysis	analysis	NOUN
ajst-30189	2	13	of	of	ADP
ajst-30189	2	14	hydraulic	hydraulic	ADJ
ajst-30189	2	15	sandblasting	sandblasting	NOUN
ajst-30189	2	16	perforation	perforation	NOUN
ajst-30189	2	17	device	device	NOUN
ajst-30189	3	1	qiangqiang	qiangqiang	PROPN
ajst-30189	3	2	cheng	cheng	PROPN
ajst-30189	3	3	*	*	PROPN
ajst-30189	3	4	,	,	PUNCT
ajst-30189	3	5	bin	bin	PROPN
ajst-30189	3	6	zhao	zhao	PROPN
ajst-30189	3	7	,	,	PUNCT
ajst-30189	3	8	chenxi	chenxi	PROPN
ajst-30189	3	9	dong	dong	PROPN
ajst-30189	3	10	school	school	PROPN
ajst-30189	3	11	of	of	ADP
ajst-30189	3	12	mechanical	mechanical	ADJ
ajst-30189	3	13	engineering	engineering	NOUN
ajst-30189	3	14	,	,	PUNCT
ajst-30189	3	15	xi’an	xi’an	PROPN
ajst-30189	3	16	shiyou	shiyou	PROPN
ajst-30189	3	17	university	university	PROPN
ajst-30189	3	18	,	,	PUNCT
ajst-30189	3	19	xi’an	xi’an	PROPN
ajst-30189	3	20	710065	710065	NUM
ajst-30189	3	21	,	,	PUNCT
ajst-30189	3	22	china	china	PROPN
ajst-30189	3	23	*	*	PUNCT
ajst-30189	3	24	corresponding	correspond	VERB
ajst-30189	3	25	author	author	NOUN
ajst-30189	3	26	:	:	PUNCT
ajst-30189	3	27	qiangqiang	qiangqiang	PROPN
ajst-30189	3	28	cheng	cheng	PROPN
ajst-30189	3	29	(	(	PUNCT
ajst-30189	3	30	email	email	NOUN
ajst-30189	3	31	:	:	PUNCT
ajst-30189	3	32	954895560@qq.com	954895560@qq.com	X
ajst-30189	3	33	)	)	PUNCT
ajst-30189	3	34	abstract	abstract	NOUN
ajst-30189	3	35	:	:	PUNCT
ajst-30189	3	36	the	the	DET
ajst-30189	3	37	coalbed	coalbe	VERB
ajst-30189	3	38	methane	methane	NOUN
ajst-30189	3	39	reservoirs	reservoir	NOUN
ajst-30189	3	40	in	in	ADP
ajst-30189	3	41	china	china	PROPN
ajst-30189	3	42	are	be	AUX
ajst-30189	3	43	mostly	mostly	ADV
ajst-30189	3	44	low	low	ADJ
ajst-30189	3	45	-	-	PUNCT
ajst-30189	3	46	permeability	permeability	NOUN
ajst-30189	3	47	reservoirs	reservoir	NOUN
ajst-30189	3	48	,	,	PUNCT
ajst-30189	3	49	which	which	PRON
ajst-30189	3	50	face	face	VERB
ajst-30189	3	51	many	many	ADJ
ajst-30189	3	52	difficulties	difficulty	NOUN
ajst-30189	3	53	in	in	ADP
ajst-30189	3	54	mining	mining	NOUN
ajst-30189	3	55	,	,	PUNCT
ajst-30189	3	56	such	such	ADJ
ajst-30189	3	57	as	as	ADP
ajst-30189	3	58	complex	complex	ADJ
ajst-30189	3	59	fractures	fracture	NOUN
ajst-30189	3	60	,	,	PUNCT
ajst-30189	3	61	susceptibility	susceptibility	NOUN
ajst-30189	3	62	to	to	PART
ajst-30189	3	63	sand	sand	NOUN
ajst-30189	3	64	blockage	blockage	NOUN
ajst-30189	3	65	,	,	PUNCT
ajst-30189	3	66	and	and	CCONJ
ajst-30189	3	67	low	low	ADJ
ajst-30189	3	68	support	support	NOUN
ajst-30189	3	69	rate	rate	NOUN
ajst-30189	3	70	.	.	PUNCT
ajst-30189	4	1	this	this	DET
ajst-30189	4	2	article	article	NOUN
ajst-30189	4	3	designs	design	VERB
ajst-30189	4	4	a	a	DET
ajst-30189	4	5	new	new	ADJ
ajst-30189	4	6	type	type	NOUN
ajst-30189	4	7	of	of	ADP
ajst-30189	4	8	hydraulic	hydraulic	NOUN
ajst-30189	4	9	sandblasting	sandblasting	NOUN
ajst-30189	4	10	perforation	perforation	NOUN
ajst-30189	4	11	device	device	NOUN
ajst-30189	4	12	that	that	PRON
ajst-30189	4	13	integrates	integrate	VERB
ajst-30189	4	14	hydraulic	hydraulic	ADJ
ajst-30189	4	15	sandblasting	sandblasting	NOUN
ajst-30189	4	16	and	and	CCONJ
ajst-30189	4	17	perforation	perforation	NOUN
ajst-30189	4	18	technology	technology	NOUN
ajst-30189	4	19	.	.	PUNCT
ajst-30189	5	1	it	it	PRON
ajst-30189	5	2	adopts	adopt	VERB
ajst-30189	5	3	a	a	DET
ajst-30189	5	4	modular	modular	ADJ
ajst-30189	5	5	structure	structure	NOUN
ajst-30189	5	6	and	and	CCONJ
ajst-30189	5	7	includes	include	VERB
ajst-30189	5	8	guiding	guiding	NOUN
ajst-30189	5	9	,	,	PUNCT
ajst-30189	5	10	adjusting	adjust	VERB
ajst-30189	5	11	,	,	PUNCT
ajst-30189	5	12	fixing	fixing	NOUN
ajst-30189	5	13	,	,	PUNCT
ajst-30189	5	14	perforation	perforation	NOUN
ajst-30189	5	15	,	,	PUNCT
ajst-30189	5	16	and	and	CCONJ
ajst-30189	5	17	stabilizing	stabilize	VERB
ajst-30189	5	18	mechanisms	mechanism	NOUN
ajst-30189	5	19	.	.	PUNCT
ajst-30189	6	1	it	it	PRON
ajst-30189	6	2	is	be	AUX
ajst-30189	6	3	suitable	suitable	ADJ
ajst-30189	6	4	for	for	ADP
ajst-30189	6	5	a	a	DET
ajst-30189	6	6	well	well	ADJ
ajst-30189	6	7	diameter	diameter	NOUN
ajst-30189	6	8	of	of	ADP
ajst-30189	6	9	139.7	139.7	NUM
ajst-30189	6	10	mm	mm	NOUN
ajst-30189	6	11	,	,	PUNCT
ajst-30189	6	12	a	a	DET
ajst-30189	6	13	maximum	maximum	ADJ
ajst-30189	6	14	outer	outer	ADJ
ajst-30189	6	15	diameter	diameter	NOUN
ajst-30189	6	16	of	of	ADP
ajst-30189	6	17	110	110	NUM
ajst-30189	6	18	mm	mm	NOUN
ajst-30189	6	19	,	,	PUNCT
ajst-30189	6	20	an	an	DET
ajst-30189	6	21	inner	inner	ADJ
ajst-30189	6	22	diameter	diameter	NOUN
ajst-30189	6	23	of	of	ADP
ajst-30189	6	24	45	45	NUM
ajst-30189	6	25	mm	mm	NOUN
ajst-30189	6	26	,	,	PUNCT
ajst-30189	6	27	a	a	DET
ajst-30189	6	28	total	total	ADJ
ajst-30189	6	29	length	length	NOUN
ajst-30189	6	30	of	of	ADP
ajst-30189	6	31	450	450	NUM
ajst-30189	6	32	mm	mm	NOUN
ajst-30189	6	33	,	,	PUNCT
ajst-30189	6	34	a	a	DET
ajst-30189	6	35	nozzle	nozzle	NOUN
ajst-30189	6	36	outlet	outlet	NOUN
ajst-30189	6	37	diameter	diameter	NOUN
ajst-30189	6	38	of	of	ADP
ajst-30189	6	39	6	6	NUM
ajst-30189	6	40	mm	mm	NOUN
ajst-30189	6	41	,	,	PUNCT
ajst-30189	6	42	and	and	CCONJ
ajst-30189	6	43	a	a	DET
ajst-30189	6	44	pressure	pressure	NOUN
ajst-30189	6	45	bearing	bear	VERB
ajst-30189	6	46	capacity	capacity	NOUN
ajst-30189	6	47	of	of	ADP
ajst-30189	6	48	90mpa	90mpa	NOUN
ajst-30189	6	49	.	.	PUNCT
ajst-30189	7	1	the	the	DET
ajst-30189	7	2	fixed	fix	VERB
ajst-30189	7	3	mechanism	mechanism	NOUN
ajst-30189	7	4	uses	use	VERB
ajst-30189	7	5	threaded	thread	VERB
ajst-30189	7	6	rods	rod	NOUN
ajst-30189	7	7	and	and	CCONJ
ajst-30189	7	8	other	other	ADJ
ajst-30189	7	9	components	component	NOUN
ajst-30189	7	10	to	to	PART
ajst-30189	7	11	achieve	achieve	VERB
ajst-30189	7	12	stable	stable	ADJ
ajst-30189	7	13	fixation	fixation	NOUN
ajst-30189	7	14	,	,	PUNCT
ajst-30189	7	15	and	and	CCONJ
ajst-30189	7	16	the	the	DET
ajst-30189	7	17	sandblasting	sandblast	VERB
ajst-30189	7	18	perforator	perforator	NOUN
ajst-30189	7	19	of	of	ADP
ajst-30189	7	20	the	the	DET
ajst-30189	7	21	perforation	perforation	NOUN
ajst-30189	7	22	system	system	NOUN
ajst-30189	7	23	consists	consist	VERB
ajst-30189	7	24	of	of	ADP
ajst-30189	7	25	a	a	DET
ajst-30189	7	26	gun	gun	NOUN
ajst-30189	7	27	body	body	NOUN
ajst-30189	7	28	,	,	PUNCT
ajst-30189	7	29	a	a	DET
ajst-30189	7	30	protective	protective	ADJ
ajst-30189	7	31	cover	cover	NOUN
ajst-30189	7	32	,	,	PUNCT
ajst-30189	7	33	and	and	CCONJ
ajst-30189	7	34	a	a	DET
ajst-30189	7	35	nozzle	nozzle	NOUN
ajst-30189	7	36	.	.	PUNCT
ajst-30189	8	1	according	accord	VERB
ajst-30189	8	2	to	to	ADP
ajst-30189	8	3	static	static	ADJ
ajst-30189	8	4	analysis	analysis	NOUN
ajst-30189	8	5	,	,	PUNCT
ajst-30189	8	6	the	the	DET
ajst-30189	8	7	maximum	maximum	ADJ
ajst-30189	8	8	deformation	deformation	NOUN
ajst-30189	8	9	value	value	NOUN
ajst-30189	8	10	of	of	ADP
ajst-30189	8	11	the	the	DET
ajst-30189	8	12	perforator	perforator	NOUN
ajst-30189	8	13	is	be	AUX
ajst-30189	8	14	0.015602	0.015602	NUM
ajst-30189	8	15	mm	mm	PROPN
ajst-30189	8	16	,	,	PUNCT
ajst-30189	8	17	and	and	CCONJ
ajst-30189	8	18	the	the	DET
ajst-30189	8	19	maximum	maximum	ADJ
ajst-30189	8	20	stress	stress	NOUN
ajst-30189	8	21	is	be	AUX
ajst-30189	8	22	235.31mpa	235.31mpa	PROPN
ajst-30189	8	23	,	,	PUNCT
ajst-30189	8	24	which	which	PRON
ajst-30189	8	25	is	be	AUX
ajst-30189	8	26	less	less	ADJ
ajst-30189	8	27	than	than	ADP
ajst-30189	8	28	the	the	DET
ajst-30189	8	29	allowable	allowable	ADJ
ajst-30189	8	30	stress	stress	NOUN
ajst-30189	8	31	of	of	ADP
ajst-30189	8	32	715mpa	715mpa	NUM
ajst-30189	8	33	for	for	ADP
ajst-30189	8	34	the	the	DET
ajst-30189	8	35	material	material	NOUN
ajst-30189	8	36	,	,	PUNCT
ajst-30189	8	37	and	and	CCONJ
ajst-30189	8	38	the	the	DET
ajst-30189	8	39	strength	strength	NOUN
ajst-30189	8	40	meets	meet	VERB
ajst-30189	8	41	the	the	DET
ajst-30189	8	42	requirements	requirement	NOUN
ajst-30189	8	43	.	.	PUNCT
ajst-30189	9	1	modal	modal	ADJ
ajst-30189	9	2	characteristic	characteristic	ADJ
ajst-30189	9	3	analysis	analysis	NOUN
ajst-30189	9	4	shows	show	VERB
ajst-30189	9	5	that	that	SCONJ
ajst-30189	9	6	its	its	PRON
ajst-30189	9	7	first	first	ADJ
ajst-30189	9	8	six	six	NUM
ajst-30189	9	9	natural	natural	ADJ
ajst-30189	9	10	frequencies	frequency	NOUN
ajst-30189	9	11	are	be	AUX
ajst-30189	9	12	all	all	ADV
ajst-30189	9	13	above	above	ADP
ajst-30189	9	14	3377hz	3377hz	NOUN
ajst-30189	9	15	,	,	PUNCT
ajst-30189	9	16	much	much	ADV
ajst-30189	9	17	higher	high	ADJ
ajst-30189	9	18	than	than	ADP
ajst-30189	9	19	the	the	DET
ajst-30189	9	20	normal	normal	ADJ
ajst-30189	9	21	operating	operating	NOUN
ajst-30189	9	22	frequency	frequency	NOUN
ajst-30189	9	23	of	of	ADP
ajst-30189	9	24	100hz	100hz	PROPN
ajst-30189	9	25	,	,	PUNCT
ajst-30189	9	26	and	and	CCONJ
ajst-30189	9	27	it	it	PRON
ajst-30189	9	28	will	will	AUX
ajst-30189	9	29	not	not	PART
ajst-30189	9	30	resonate	resonate	VERB
ajst-30189	9	31	during	during	ADP
ajst-30189	9	32	operation	operation	NOUN
ajst-30189	9	33	.	.	PUNCT
ajst-30189	10	1	this	this	DET
ajst-30189	10	2	device	device	NOUN
ajst-30189	10	3	can	can	AUX
ajst-30189	10	4	ensure	ensure	VERB
ajst-30189	10	5	the	the	DET
ajst-30189	10	6	accuracy	accuracy	NOUN
ajst-30189	10	7	of	of	ADP
ajst-30189	10	8	sandblasting	sandblast	VERB
ajst-30189	10	9	perforation	perforation	NOUN
ajst-30189	10	10	,	,	PUNCT
ajst-30189	10	11	reduce	reduce	VERB
ajst-30189	10	12	the	the	DET
ajst-30189	10	13	risk	risk	NOUN
ajst-30189	10	14	of	of	ADP
ajst-30189	10	15	accidents	accident	NOUN
ajst-30189	10	16	,	,	PUNCT
ajst-30189	10	17	and	and	CCONJ
ajst-30189	10	18	provide	provide	VERB
ajst-30189	10	19	technical	technical	ADJ
ajst-30189	10	20	support	support	NOUN
ajst-30189	10	21	for	for	ADP
ajst-30189	10	22	efficient	efficient	ADJ
ajst-30189	10	23	exploitation	exploitation	NOUN
ajst-30189	10	24	of	of	ADP
ajst-30189	10	25	coalbed	coalbe	VERB
ajst-30189	10	26	methane	methane	NOUN
ajst-30189	10	27	.	.	PUNCT
ajst-30189	11	1	keywords	keyword	NOUN
ajst-30189	11	2	:	:	PUNCT
ajst-30189	11	3	nozzle	nozzle	NOUN
ajst-30189	11	4	;	;	PUNCT
ajst-30189	11	5	fracturing	fracturing	NOUN
ajst-30189	11	6	;	;	PUNCT
ajst-30189	11	7	hydraulic	hydraulic	ADJ
ajst-30189	11	8	sandblasting	sandblasting	NOUN
ajst-30189	11	9	perforation	perforation	NOUN
ajst-30189	11	10	device	device	NOUN
ajst-30189	11	11	;	;	PUNCT
ajst-30189	11	12	static	static	ADJ
ajst-30189	11	13	analysis	analysis	NOUN
ajst-30189	11	14	;	;	PUNCT
ajst-30189	11	15	modal	modal	ADJ
ajst-30189	11	16	analysis	analysis	NOUN
ajst-30189	11	17	.	.	PUNCT
ajst-30189	12	1	1	1	X
ajst-30189	12	2	.	.	X
ajst-30189	12	3	introduction	introduction	NOUN
ajst-30189	12	4	the	the	DET
ajst-30189	12	5	coalbed	coalbe	VERB
ajst-30189	12	6	methane	methane	NOUN
ajst-30189	12	7	reservoirs	reservoir	NOUN
ajst-30189	12	8	in	in	ADP
ajst-30189	12	9	china	china	PROPN
ajst-30189	12	10	are	be	AUX
ajst-30189	12	11	mostly	mostly	ADV
ajst-30189	12	12	lowpermeability	lowpermeability	NOUN
ajst-30189	12	13	reservoirs	reservoir	NOUN
ajst-30189	12	14	,	,	PUNCT
ajst-30189	12	15	and	and	CCONJ
ajst-30189	12	16	most	most	ADJ
ajst-30189	12	17	wells	well	NOUN
ajst-30189	12	18	have	have	VERB
ajst-30189	12	19	little	little	ADJ
ajst-30189	12	20	production	production	NOUN
ajst-30189	12	21	without	without	ADP
ajst-30189	12	22	fracturing	fracture	VERB
ajst-30189	12	23	.	.	PUNCT
ajst-30189	13	1	therefore	therefore	ADV
ajst-30189	13	2	,	,	PUNCT
ajst-30189	13	3	hydraulic	hydraulic	ADJ
ajst-30189	13	4	fracturing	fracturing	NOUN
ajst-30189	13	5	technology	technology	NOUN
ajst-30189	13	6	is	be	AUX
ajst-30189	13	7	one	one	NUM
ajst-30189	13	8	of	of	ADP
ajst-30189	13	9	the	the	DET
ajst-30189	13	10	main	main	ADJ
ajst-30189	13	11	production	production	NOUN
ajst-30189	13	12	increasing	increase	VERB
ajst-30189	13	13	technologies	technology	NOUN
ajst-30189	13	14	for	for	ADP
ajst-30189	13	15	coalbed	coalbe	VERB
ajst-30189	13	16	methane	methane	NOUN
ajst-30189	13	17	development	development	NOUN
ajst-30189	13	18	in	in	ADP
ajst-30189	13	19	china[1	china[1	NOUN
ajst-30189	13	20	-	-	PUNCT
ajst-30189	13	21	3	3	NUM
ajst-30189	13	22	]	]	PUNCT
ajst-30189	13	23	.	.	PUNCT
ajst-30189	14	1	hydraulic	hydraulic	ADJ
ajst-30189	14	2	jet	jet	NOUN
ajst-30189	14	3	fracturing	fracturing	NOUN
ajst-30189	14	4	technology	technology	NOUN
ajst-30189	14	5	is	be	AUX
ajst-30189	14	6	a	a	DET
ajst-30189	14	7	new	new	ADJ
ajst-30189	14	8	type	type	NOUN
ajst-30189	14	9	of	of	ADP
ajst-30189	14	10	stimulation	stimulation	NOUN
ajst-30189	14	11	and	and	CCONJ
ajst-30189	14	12	transformation	transformation	NOUN
ajst-30189	14	13	technology	technology	NOUN
ajst-30189	14	14	that	that	PRON
ajst-30189	14	15	integrates	integrate	VERB
ajst-30189	14	16	perforation	perforation	NOUN
ajst-30189	14	17	,	,	PUNCT
ajst-30189	14	18	fracturing	fracturing	NOUN
ajst-30189	14	19	,	,	PUNCT
ajst-30189	14	20	and	and	CCONJ
ajst-30189	14	21	isolation	isolation	NOUN
ajst-30189	14	22	.	.	PUNCT
ajst-30189	15	1	it	it	PRON
ajst-30189	15	2	is	be	AUX
ajst-30189	15	3	suitable	suitable	ADJ
ajst-30189	15	4	for	for	ADP
ajst-30189	15	5	the	the	DET
ajst-30189	15	6	stimulation	stimulation	NOUN
ajst-30189	15	7	and	and	CCONJ
ajst-30189	15	8	transformation	transformation	NOUN
ajst-30189	15	9	of	of	ADP
ajst-30189	15	10	vertical	vertical	ADJ
ajst-30189	15	11	and	and	CCONJ
ajst-30189	15	12	horizontal	horizontal	ADJ
ajst-30189	15	13	wells	well	NOUN
ajst-30189	15	14	in	in	ADP
ajst-30189	15	15	low	low	ADJ
ajst-30189	15	16	-	-	PUNCT
ajst-30189	15	17	permeability	permeability	NOUN
ajst-30189	15	18	reservoirs	reservoir	NOUN
ajst-30189	15	19	and	and	CCONJ
ajst-30189	15	20	is	be	AUX
ajst-30189	15	21	an	an	DET
ajst-30189	15	22	effective	effective	ADJ
ajst-30189	15	23	method	method	NOUN
ajst-30189	15	24	for	for	ADP
ajst-30189	15	25	fracturing	fracture	VERB
ajst-30189	15	26	and	and	CCONJ
ajst-30189	15	27	increasing	increase	VERB
ajst-30189	15	28	production	production	NOUN
ajst-30189	15	29	in	in	ADP
ajst-30189	15	30	lowpermeability	lowpermeability	NOUN
ajst-30189	15	31	reservoirs	reservoir	NOUN
ajst-30189	15	32	.	.	PUNCT
ajst-30189	16	1	due	due	ADP
ajst-30189	16	2	to	to	ADP
ajst-30189	16	3	the	the	DET
ajst-30189	16	4	low	low	ADJ
ajst-30189	16	5	elastic	elastic	ADJ
ajst-30189	16	6	modulus	modulus	NOUN
ajst-30189	16	7	of	of	ADP
ajst-30189	16	8	coal	coal	NOUN
ajst-30189	16	9	and	and	CCONJ
ajst-30189	16	10	rock	rock	NOUN
ajst-30189	16	11	,	,	PUNCT
ajst-30189	16	12	the	the	DET
ajst-30189	16	13	soft	soft	ADJ
ajst-30189	16	14	formation	formation	NOUN
ajst-30189	16	15	,	,	PUNCT
ajst-30189	16	16	and	and	CCONJ
ajst-30189	16	17	the	the	DET
ajst-30189	16	18	development	development	NOUN
ajst-30189	16	19	of	of	ADP
ajst-30189	16	20	natural	natural	ADJ
ajst-30189	16	21	cleavage	cleavage	NOUN
ajst-30189	16	22	fractures	fracture	NOUN
ajst-30189	16	23	,	,	PUNCT
ajst-30189	16	24	complex	complex	ADJ
ajst-30189	16	25	fracture	fracture	NOUN
ajst-30189	16	26	propagation	propagation	NOUN
ajst-30189	16	27	patterns	pattern	NOUN
ajst-30189	16	28	are	be	AUX
ajst-30189	16	29	easily	easily	ADV
ajst-30189	16	30	formed	form	VERB
ajst-30189	16	31	during	during	ADP
ajst-30189	16	32	coal	coal	NOUN
ajst-30189	16	33	seam	seam	NOUN
ajst-30189	16	34	hydraulic	hydraulic	NOUN
ajst-30189	16	35	fracturing	fracturing	NOUN
ajst-30189	16	36	.	.	PUNCT
ajst-30189	17	1	complex	complex	ADJ
ajst-30189	17	2	fractures	fracture	NOUN
ajst-30189	17	3	develop	develop	VERB
ajst-30189	17	4	in	in	ADP
ajst-30189	17	5	a	a	DET
ajst-30189	17	6	network	network	NOUN
ajst-30189	17	7	shape	shape	NOUN
ajst-30189	17	8	,	,	PUNCT
ajst-30189	17	9	with	with	ADP
ajst-30189	17	10	limited	limited	ADJ
ajst-30189	17	11	opening	opening	NOUN
ajst-30189	17	12	of	of	ADP
ajst-30189	17	13	individual	individual	ADJ
ajst-30189	17	14	fractures	fracture	NOUN
ajst-30189	17	15	,	,	PUNCT
ajst-30189	17	16	easy	easy	ADJ
ajst-30189	17	17	sand	sand	NOUN
ajst-30189	17	18	blockage	blockage	NOUN
ajst-30189	17	19	,	,	PUNCT
ajst-30189	17	20	and	and	CCONJ
ajst-30189	17	21	difficulty	difficulty	NOUN
ajst-30189	17	22	in	in	ADP
ajst-30189	17	23	improving	improve	VERB
ajst-30189	17	24	sand	sand	NOUN
ajst-30189	17	25	ratio	ratio	NOUN
ajst-30189	17	26	.	.	PUNCT
ajst-30189	18	1	the	the	DET
ajst-30189	18	2	ultimate	ultimate	ADJ
ajst-30189	18	3	effective	effective	ADJ
ajst-30189	18	4	support	support	NOUN
ajst-30189	18	5	rate	rate	NOUN
ajst-30189	18	6	of	of	ADP
ajst-30189	18	7	fractures	fracture	NOUN
ajst-30189	18	8	is	be	AUX
ajst-30189	18	9	low	low	ADJ
ajst-30189	18	10	,	,	PUNCT
ajst-30189	18	11	and	and	CCONJ
ajst-30189	18	12	the	the	DET
ajst-30189	18	13	difficulty	difficulty	NOUN
ajst-30189	18	14	of	of	ADP
ajst-30189	18	15	extending	extend	VERB
ajst-30189	18	16	fracture	fracture	NOUN
ajst-30189	18	17	length	length	NOUN
ajst-30189	18	18	is	be	AUX
ajst-30189	18	19	high	high	ADJ
ajst-30189	18	20	[	[	X
ajst-30189	18	21	4	4	NUM
ajst-30189	18	22	-	-	SYM
ajst-30189	18	23	5	5	NUM
ajst-30189	18	24	]	]	PUNCT
ajst-30189	18	25	.	.	PUNCT
ajst-30189	19	1	with	with	ADP
ajst-30189	19	2	the	the	DET
ajst-30189	19	3	huge	huge	ADJ
ajst-30189	19	4	demand	demand	NOUN
ajst-30189	19	5	for	for	ADP
ajst-30189	19	6	energy	energy	NOUN
ajst-30189	19	7	in	in	ADP
ajst-30189	19	8	the	the	DET
ajst-30189	19	9	development	development	NOUN
ajst-30189	19	10	of	of	ADP
ajst-30189	19	11	the	the	DET
ajst-30189	19	12	national	national	ADJ
ajst-30189	19	13	economy	economy	NOUN
ajst-30189	19	14	and	and	CCONJ
ajst-30189	19	15	the	the	DET
ajst-30189	19	16	increasingly	increasingly	ADV
ajst-30189	19	17	depleted	deplete	VERB
ajst-30189	19	18	energy	energy	NOUN
ajst-30189	19	19	crisis	crisis	NOUN
ajst-30189	19	20	,	,	PUNCT
ajst-30189	19	21	energy	energy	NOUN
ajst-30189	19	22	exploration	exploration	NOUN
ajst-30189	19	23	technology	technology	NOUN
ajst-30189	19	24	is	be	AUX
ajst-30189	19	25	forced	force	VERB
ajst-30189	19	26	to	to	PART
ajst-30189	19	27	constantly	constantly	ADV
ajst-30189	19	28	innovate	innovate	VERB
ajst-30189	19	29	.	.	PUNCT
ajst-30189	20	1	it	it	PRON
ajst-30189	20	2	is	be	AUX
ajst-30189	20	3	necessary	necessary	ADJ
ajst-30189	20	4	to	to	PART
ajst-30189	20	5	increase	increase	VERB
ajst-30189	20	6	and	and	CCONJ
ajst-30189	20	7	target	target	VERB
ajst-30189	20	8	the	the	DET
ajst-30189	20	9	development	development	NOUN
ajst-30189	20	10	of	of	ADP
ajst-30189	20	11	low	low	ADJ
ajst-30189	20	12	-	-	PUNCT
ajst-30189	20	13	pressure	pressure	NOUN
ajst-30189	20	14	,	,	PUNCT
ajst-30189	20	15	low	low	ADJ
ajst-30189	20	16	-	-	PUNCT
ajst-30189	20	17	permeability	permeability	NOUN
ajst-30189	20	18	,	,	PUNCT
ajst-30189	20	19	and	and	CCONJ
ajst-30189	20	20	lowpermeability	lowpermeability	NOUN
ajst-30189	20	21	"	"	PUNCT
ajst-30189	20	22	three	three	NUM
ajst-30189	20	23	low	low	ADJ
ajst-30189	20	24	"	"	PUNCT
ajst-30189	20	25	oil	oil	NOUN
ajst-30189	20	26	reservoirs	reservoir	NOUN
ajst-30189	20	27	and	and	CCONJ
ajst-30189	20	28	unconventional	unconventional	ADJ
ajst-30189	20	29	oil	oil	NOUN
ajst-30189	20	30	and	and	CCONJ
ajst-30189	20	31	gas	gas	NOUN
ajst-30189	20	32	resources	resource	NOUN
ajst-30189	20	33	such	such	ADJ
ajst-30189	20	34	as	as	ADP
ajst-30189	20	35	coalbed	coalbe	VERB
ajst-30189	20	36	methane	methane	NOUN
ajst-30189	20	37	and	and	CCONJ
ajst-30189	20	38	shale	shale	NOUN
ajst-30189	20	39	gas	gas	NOUN
ajst-30189	20	40	.	.	PUNCT
ajst-30189	21	1	especially	especially	ADV
ajst-30189	21	2	as	as	SCONJ
ajst-30189	21	3	oil	oil	NOUN
ajst-30189	21	4	and	and	CCONJ
ajst-30189	21	5	gas	gas	NOUN
ajst-30189	21	6	fields	field	NOUN
ajst-30189	21	7	enter	enter	VERB
ajst-30189	21	8	the	the	DET
ajst-30189	21	9	middle	middle	ADJ
ajst-30189	21	10	and	and	CCONJ
ajst-30189	21	11	later	later	ADJ
ajst-30189	21	12	stages	stage	NOUN
ajst-30189	21	13	,	,	PUNCT
ajst-30189	21	14	the	the	DET
ajst-30189	21	15	utilization	utilization	NOUN
ajst-30189	21	16	of	of	ADP
ajst-30189	21	17	reserves	reserve	NOUN
ajst-30189	21	18	becomes	become	VERB
ajst-30189	21	19	increasingly	increasingly	ADV
ajst-30189	21	20	difficult	difficult	ADJ
ajst-30189	21	21	.	.	PUNCT
ajst-30189	22	1	in	in	ADP
ajst-30189	22	2	order	order	NOUN
ajst-30189	22	3	to	to	PART
ajst-30189	22	4	achieve	achieve	VERB
ajst-30189	22	5	stable	stable	ADJ
ajst-30189	22	6	and	and	CCONJ
ajst-30189	22	7	high	high	ADJ
ajst-30189	22	8	yields	yield	NOUN
ajst-30189	22	9	,	,	PUNCT
ajst-30189	22	10	the	the	DET
ajst-30189	22	11	focus	focus	NOUN
ajst-30189	22	12	of	of	ADP
ajst-30189	22	13	development	development	NOUN
ajst-30189	22	14	has	have	AUX
ajst-30189	22	15	shifted	shift	VERB
ajst-30189	22	16	to	to	ADP
ajst-30189	22	17	the	the	DET
ajst-30189	22	18	previously	previously	ADV
ajst-30189	22	19	overlooked	overlook	VERB
ajst-30189	22	20	thin	thin	ADJ
ajst-30189	22	21	layers	layer	NOUN
ajst-30189	22	22	of	of	ADP
ajst-30189	22	23	differential	differential	NOUN
ajst-30189	22	24	layers[6	layers[6	PROPN
ajst-30189	22	25	]	]	PUNCT
ajst-30189	22	26	.	.	PUNCT
ajst-30189	23	1	in	in	ADP
ajst-30189	23	2	order	order	NOUN
ajst-30189	23	3	to	to	PART
ajst-30189	23	4	develop	develop	VERB
ajst-30189	23	5	these	these	DET
ajst-30189	23	6	complex	complex	ADJ
ajst-30189	23	7	reservoirs	reservoir	NOUN
ajst-30189	23	8	quickly	quickly	ADV
ajst-30189	23	9	and	and	CCONJ
ajst-30189	23	10	efficiently	efficiently	ADV
ajst-30189	23	11	,	,	PUNCT
ajst-30189	23	12	the	the	DET
ajst-30189	23	13	concept	concept	NOUN
ajst-30189	23	14	of	of	ADP
ajst-30189	23	15	refinement	refinement	NOUN
ajst-30189	23	16	is	be	AUX
ajst-30189	23	17	not	not	PART
ajst-30189	23	18	only	only	ADV
ajst-30189	23	19	proposed	propose	VERB
ajst-30189	23	20	in	in	ADP
ajst-30189	23	21	management	management	NOUN
ajst-30189	23	22	,	,	PUNCT
ajst-30189	23	23	but	but	CCONJ
ajst-30189	23	24	also	also	ADV
ajst-30189	23	25	requires	require	VERB
ajst-30189	23	26	improvements	improvement	NOUN
ajst-30189	23	27	in	in	ADP
ajst-30189	23	28	process	process	NOUN
ajst-30189	23	29	technology	technology	NOUN
ajst-30189	24	1	[	[	X
ajst-30189	24	2	7	7	NUM
ajst-30189	24	3	-	-	SYM
ajst-30189	24	4	9	9	NUM
ajst-30189	24	5	]	]	PUNCT
ajst-30189	24	6	.	.	PUNCT
ajst-30189	25	1	this	this	DET
ajst-30189	25	2	article	article	NOUN
ajst-30189	25	3	designs	design	VERB
ajst-30189	25	4	a	a	DET
ajst-30189	25	5	new	new	ADJ
ajst-30189	25	6	type	type	NOUN
ajst-30189	25	7	of	of	ADP
ajst-30189	25	8	hydraulic	hydraulic	NOUN
ajst-30189	25	9	sandblasting	sandblasting	NOUN
ajst-30189	25	10	perforation	perforation	NOUN
ajst-30189	25	11	device	device	NOUN
ajst-30189	25	12	,	,	PUNCT
ajst-30189	25	13	which	which	PRON
ajst-30189	25	14	is	be	AUX
ajst-30189	25	15	a	a	DET
ajst-30189	25	16	device	device	NOUN
ajst-30189	25	17	used	use	VERB
ajst-30189	25	18	for	for	ADP
ajst-30189	25	19	coalbed	coalbe	VERB
ajst-30189	25	20	methane	methane	NOUN
ajst-30189	25	21	or	or	CCONJ
ajst-30189	25	22	coal	coal	NOUN
ajst-30189	25	23	seam	seam	NOUN
ajst-30189	25	24	water	water	NOUN
ajst-30189	25	25	injection	injection	NOUN
ajst-30189	25	26	mining	mining	NOUN
ajst-30189	25	27	.	.	PUNCT
ajst-30189	26	1	it	it	PRON
ajst-30189	26	2	combines	combine	VERB
ajst-30189	26	3	hydraulic	hydraulic	ADJ
ajst-30189	26	4	sandblasting	sandblasting	NOUN
ajst-30189	26	5	and	and	CCONJ
ajst-30189	26	6	perforation	perforation	NOUN
ajst-30189	26	7	technologies	technology	NOUN
ajst-30189	26	8	to	to	PART
ajst-30189	26	9	complete	complete	VERB
ajst-30189	26	10	sandblasting	sandblasting	NOUN
ajst-30189	26	11	and	and	CCONJ
ajst-30189	26	12	perforation	perforation	NOUN
ajst-30189	26	13	operations	operation	NOUN
ajst-30189	26	14	of	of	ADP
ajst-30189	26	15	coal	coal	NOUN
ajst-30189	26	16	and	and	CCONJ
ajst-30189	26	17	rock	rock	NOUN
ajst-30189	26	18	layers	layer	NOUN
ajst-30189	26	19	in	in	ADP
ajst-30189	26	20	one	one	NUM
ajst-30189	26	21	device	device	NOUN
ajst-30189	26	22	.	.	PUNCT
ajst-30189	27	1	it	it	PRON
ajst-30189	27	2	mainly	mainly	ADV
ajst-30189	27	3	includes	include	VERB
ajst-30189	27	4	two	two	NUM
ajst-30189	27	5	parts	part	NOUN
ajst-30189	27	6	:	:	PUNCT
ajst-30189	27	7	hydraulic	hydraulic	ADJ
ajst-30189	27	8	sandblasting	sandblasting	NOUN
ajst-30189	27	9	system	system	NOUN
ajst-30189	27	10	and	and	CCONJ
ajst-30189	27	11	perforation	perforation	NOUN
ajst-30189	27	12	system	system	NOUN
ajst-30189	27	13	.	.	PUNCT
ajst-30189	28	1	the	the	DET
ajst-30189	28	2	hydraulic	hydraulic	ADJ
ajst-30189	28	3	sandblasting	sandblasting	NOUN
ajst-30189	28	4	system	system	NOUN
ajst-30189	28	5	uses	use	VERB
ajst-30189	28	6	high	high	ADJ
ajst-30189	28	7	-	-	PUNCT
ajst-30189	28	8	pressure	pressure	NOUN
ajst-30189	28	9	water	water	NOUN
ajst-30189	28	10	jet	jet	NOUN
ajst-30189	28	11	to	to	PART
ajst-30189	28	12	wash	wash	VERB
ajst-30189	28	13	the	the	DET
ajst-30189	28	14	coal	coal	NOUN
ajst-30189	28	15	and	and	CCONJ
ajst-30189	28	16	rock	rock	NOUN
ajst-30189	28	17	layers	layer	NOUN
ajst-30189	28	18	to	to	PART
ajst-30189	28	19	achieve	achieve	VERB
ajst-30189	28	20	the	the	DET
ajst-30189	28	21	effect	effect	NOUN
ajst-30189	28	22	of	of	ADP
ajst-30189	28	23	fragmentation	fragmentation	NOUN
ajst-30189	28	24	and	and	CCONJ
ajst-30189	28	25	dissolution	dissolution	NOUN
ajst-30189	28	26	,	,	PUNCT
ajst-30189	28	27	thereby	thereby	ADV
ajst-30189	28	28	improving	improve	VERB
ajst-30189	28	29	the	the	DET
ajst-30189	28	30	permeability	permeability	NOUN
ajst-30189	28	31	of	of	ADP
ajst-30189	28	32	coalbed	coalbe	VERB
ajst-30189	28	33	methane	methane	NOUN
ajst-30189	28	34	or	or	CCONJ
ajst-30189	28	35	coal	coal	NOUN
ajst-30189	28	36	seam	seam	NOUN
ajst-30189	28	37	water	water	NOUN
ajst-30189	28	38	injection	injection	NOUN
ajst-30189	28	39	.	.	PUNCT
ajst-30189	29	1	the	the	DET
ajst-30189	29	2	perforation	perforation	NOUN
ajst-30189	29	3	system	system	NOUN
ajst-30189	29	4	uses	use	VERB
ajst-30189	29	5	bullet	bullet	NOUN
ajst-30189	29	6	guns	gun	NOUN
ajst-30189	29	7	or	or	CCONJ
ajst-30189	29	8	other	other	ADJ
ajst-30189	29	9	forms	form	NOUN
ajst-30189	29	10	of	of	ADP
ajst-30189	29	11	perforation	perforation	NOUN
ajst-30189	29	12	tools	tool	NOUN
ajst-30189	29	13	to	to	PART
ajst-30189	29	14	form	form	VERB
ajst-30189	29	15	holes	hole	NOUN
ajst-30189	29	16	in	in	ADP
ajst-30189	29	17	the	the	DET
ajst-30189	29	18	washed	wash	VERB
ajst-30189	29	19	coal	coal	NOUN
ajst-30189	29	20	and	and	CCONJ
ajst-30189	29	21	rock	rock	NOUN
ajst-30189	29	22	layers	layer	NOUN
ajst-30189	29	23	to	to	PART
ajst-30189	29	24	facilitate	facilitate	VERB
ajst-30189	29	25	the	the	DET
ajst-30189	29	26	extraction	extraction	NOUN
ajst-30189	29	27	or	or	CCONJ
ajst-30189	29	28	injection	injection	NOUN
ajst-30189	29	29	of	of	ADP
ajst-30189	29	30	coalbed	coalbe	VERB
ajst-30189	29	31	methane	methane	NOUN
ajst-30189	29	32	or	or	CCONJ
ajst-30189	29	33	water	water	NOUN
ajst-30189	29	34	[	[	X
ajst-30189	29	35	10	10	NUM
ajst-30189	29	36	-	-	SYM
ajst-30189	29	37	12	12	NUM
ajst-30189	29	38	]	]	PUNCT
ajst-30189	29	39	.	.	PUNCT
ajst-30189	30	1	in	in	ADP
ajst-30189	30	2	the	the	DET
ajst-30189	30	3	process	process	NOUN
ajst-30189	30	4	of	of	ADP
ajst-30189	30	5	mining	mining	NOUN
ajst-30189	30	6	coal	coal	NOUN
ajst-30189	30	7	seams	seam	NOUN
ajst-30189	30	8	,	,	PUNCT
ajst-30189	30	9	especially	especially	ADV
ajst-30189	30	10	during	during	ADP
ajst-30189	30	11	sandblasting	sandblasting	NOUN
ajst-30189	30	12	and	and	CCONJ
ajst-30189	30	13	perforation	perforation	NOUN
ajst-30189	30	14	operations	operation	NOUN
ajst-30189	30	15	,	,	PUNCT
ajst-30189	30	16	it	it	PRON
ajst-30189	30	17	is	be	AUX
ajst-30189	30	18	usually	usually	ADV
ajst-30189	30	19	necessary	necessary	ADJ
ajst-30189	30	20	for	for	SCONJ
ajst-30189	30	21	workers	worker	NOUN
ajst-30189	30	22	to	to	PART
ajst-30189	30	23	conduct	conduct	VERB
ajst-30189	30	24	simulation	simulation	NOUN
ajst-30189	30	25	calculations	calculation	NOUN
ajst-30189	30	26	in	in	ADP
ajst-30189	30	27	advance	advance	NOUN
ajst-30189	30	28	to	to	PART
ajst-30189	30	29	determine	determine	VERB
ajst-30189	30	30	the	the	DET
ajst-30189	30	31	specific	specific	ADJ
ajst-30189	30	32	location	location	NOUN
ajst-30189	30	33	of	of	ADP
ajst-30189	30	34	sandblasting	sandblasting	NOUN
ajst-30189	30	35	and	and	CCONJ
ajst-30189	30	36	perforation	perforation	NOUN
ajst-30189	30	37	required	require	VERB
ajst-30189	30	38	for	for	ADP
ajst-30189	30	39	the	the	DET
ajst-30189	30	40	coal	coal	NOUN
ajst-30189	30	41	seam	seam	NOUN
ajst-30189	30	42	.	.	PUNCT
ajst-30189	31	1	however	however	ADV
ajst-30189	31	2	,	,	PUNCT
ajst-30189	31	3	in	in	ADP
ajst-30189	31	4	existing	exist	VERB
ajst-30189	31	5	technologies	technology	NOUN
ajst-30189	31	6	,	,	PUNCT
ajst-30189	31	7	there	there	PRON
ajst-30189	31	8	is	be	VERB
ajst-30189	31	9	usually	usually	ADV
ajst-30189	31	10	no	no	DET
ajst-30189	31	11	positioning	positioning	NOUN
ajst-30189	31	12	function	function	NOUN
ajst-30189	31	13	for	for	ADP
ajst-30189	31	14	the	the	DET
ajst-30189	31	15	device	device	NOUN
ajst-30189	31	16	,	,	PUNCT
ajst-30189	31	17	which	which	PRON
ajst-30189	31	18	may	may	AUX
ajst-30189	31	19	cause	cause	VERB
ajst-30189	31	20	the	the	DET
ajst-30189	31	21	position	position	NOUN
ajst-30189	31	22	of	of	ADP
ajst-30189	31	23	the	the	DET
ajst-30189	31	24	sandblasting	sandblasting	NOUN
ajst-30189	31	25	and	and	CCONJ
ajst-30189	31	26	perforation	perforation	NOUN
ajst-30189	31	27	to	to	PART
ajst-30189	31	28	shift	shift	VERB
ajst-30189	31	29	due	due	ADP
ajst-30189	31	30	to	to	ADP
ajst-30189	31	31	its	its	PRON
ajst-30189	31	32	instability	instability	NOUN
ajst-30189	31	33	when	when	SCONJ
ajst-30189	31	34	using	use	VERB
ajst-30189	31	35	the	the	DET
ajst-30189	31	36	device	device	NOUN
ajst-30189	31	37	for	for	ADP
ajst-30189	31	38	sandblasting	sandblasting	NOUN
ajst-30189	31	39	and	and	CCONJ
ajst-30189	31	40	perforation	perforation	NOUN
ajst-30189	31	41	operations	operation	NOUN
ajst-30189	31	42	,	,	PUNCT
ajst-30189	31	43	thereby	thereby	ADV
ajst-30189	31	44	affecting	affect	VERB
ajst-30189	31	45	the	the	DET
ajst-30189	31	46	accuracy	accuracy	NOUN
ajst-30189	31	47	of	of	ADP
ajst-30189	31	48	sandblasting	sandblasting	NOUN
ajst-30189	31	49	and	and	CCONJ
ajst-30189	31	50	perforation	perforation	NOUN
ajst-30189	31	51	of	of	ADP
ajst-30189	31	52	the	the	DET
ajst-30189	31	53	coal	coal	NOUN
ajst-30189	31	54	seam	seam	NOUN
ajst-30189	31	55	.	.	PUNCT
ajst-30189	32	1	in	in	ADP
ajst-30189	32	2	severe	severe	ADJ
ajst-30189	32	3	cases	case	NOUN
ajst-30189	32	4	,	,	PUNCT
ajst-30189	32	5	it	it	PRON
ajst-30189	32	6	may	may	AUX
ajst-30189	32	7	even	even	ADV
ajst-30189	32	8	lead	lead	VERB
ajst-30189	32	9	to	to	ADP
ajst-30189	32	10	coal	coal	NOUN
ajst-30189	32	11	seam	seam	NOUN
ajst-30189	32	12	collapse	collapse	NOUN
ajst-30189	32	13	,	,	PUNCT
ajst-30189	32	14	posing	pose	VERB
ajst-30189	32	15	a	a	DET
ajst-30189	32	16	great	great	ADJ
ajst-30189	32	17	safety	safety	NOUN
ajst-30189	32	18	hazard	hazard	NOUN
ajst-30189	32	19	to	to	ADP
ajst-30189	32	20	the	the	DET
ajst-30189	32	21	lives	life	NOUN
ajst-30189	32	22	of	of	ADP
ajst-30189	32	23	workers	worker	NOUN
ajst-30189	32	24	.	.	PUNCT
ajst-30189	33	1	2	2	X
ajst-30189	33	2	.	.	X
ajst-30189	33	3	structural	structural	ADJ
ajst-30189	33	4	design	design	NOUN
ajst-30189	33	5	and	and	CCONJ
ajst-30189	33	6	working	working	NOUN
ajst-30189	33	7	principle	principle	NOUN
ajst-30189	33	8	of	of	ADP
ajst-30189	33	9	a	a	DET
ajst-30189	33	10	new	new	ADJ
ajst-30189	33	11	hydraulic	hydraulic	NOUN
ajst-30189	33	12	sandblasting	sandblasting	NOUN
ajst-30189	33	13	perforation	perforation	NOUN
ajst-30189	33	14	device	device	NOUN
ajst-30189	33	15	2.1	2.1	NUM
ajst-30189	33	16	.	.	PUNCT
ajst-30189	34	1	overall	overall	ADJ
ajst-30189	34	2	structural	structural	ADJ
ajst-30189	34	3	design	design	NOUN
ajst-30189	34	4	based	base	VERB
ajst-30189	34	5	on	on	ADP
ajst-30189	34	6	the	the	DET
ajst-30189	34	7	principle	principle	NOUN
ajst-30189	34	8	of	of	ADP
ajst-30189	34	9	underground	underground	ADJ
ajst-30189	34	10	erosion	erosion	NOUN
ajst-30189	34	11	and	and	CCONJ
ajst-30189	34	12	137	137	NUM
ajst-30189	34	13	combined	combine	VERB
ajst-30189	34	14	with	with	ADP
ajst-30189	34	15	the	the	DET
ajst-30189	34	16	practical	practical	ADJ
ajst-30189	34	17	application	application	NOUN
ajst-30189	34	18	requirements	requirement	NOUN
ajst-30189	34	19	of	of	ADP
ajst-30189	34	20	the	the	DET
ajst-30189	34	21	device	device	NOUN
ajst-30189	34	22	,	,	PUNCT
ajst-30189	34	23	the	the	DET
ajst-30189	34	24	scheme	scheme	NOUN
ajst-30189	34	25	improvement	improvement	NOUN
ajst-30189	34	26	of	of	ADP
ajst-30189	34	27	the	the	DET
ajst-30189	34	28	hydraulic	hydraulic	NOUN
ajst-30189	34	29	sandblasting	sandblasting	NOUN
ajst-30189	34	30	perforation	perforation	NOUN
ajst-30189	34	31	device	device	NOUN
ajst-30189	34	32	has	have	AUX
ajst-30189	34	33	been	be	AUX
ajst-30189	34	34	completed	complete	VERB
ajst-30189	34	35	,	,	PUNCT
ajst-30189	34	36	and	and	CCONJ
ajst-30189	34	37	a	a	DET
ajst-30189	34	38	new	new	ADJ
ajst-30189	34	39	type	type	NOUN
ajst-30189	34	40	of	of	ADP
ajst-30189	34	41	fixable	fixable	ADJ
ajst-30189	34	42	hydraulic	hydraulic	NOUN
ajst-30189	34	43	sandblasting	sandblasting	NOUN
ajst-30189	34	44	perforation	perforation	NOUN
ajst-30189	34	45	device	device	NOUN
ajst-30189	34	46	is	be	AUX
ajst-30189	34	47	proposed	propose	VERB
ajst-30189	34	48	as	as	SCONJ
ajst-30189	34	49	shown	show	VERB
ajst-30189	34	50	in	in	ADP
ajst-30189	34	51	figure	figure	NOUN
ajst-30189	34	52	1	1	NUM
ajst-30189	34	53	.	.	PUNCT
ajst-30189	35	1	then	then	ADV
ajst-30189	35	2	,	,	PUNCT
ajst-30189	35	3	modular	modular	ADJ
ajst-30189	35	4	design	design	NOUN
ajst-30189	35	5	is	be	AUX
ajst-30189	35	6	adopted	adopt	VERB
ajst-30189	35	7	for	for	ADP
ajst-30189	35	8	the	the	DET
ajst-30189	35	9	structure	structure	NOUN
ajst-30189	35	10	of	of	ADP
ajst-30189	35	11	the	the	DET
ajst-30189	35	12	device	device	NOUN
ajst-30189	35	13	,	,	PUNCT
ajst-30189	35	14	including	include	VERB
ajst-30189	35	15	five	five	NUM
ajst-30189	35	16	parts	part	NOUN
ajst-30189	35	17	:	:	PUNCT
ajst-30189	35	18	guiding	guide	VERB
ajst-30189	35	19	mechanism	mechanism	NOUN
ajst-30189	35	20	,	,	PUNCT
ajst-30189	35	21	adjusting	adjust	VERB
ajst-30189	35	22	mechanism	mechanism	NOUN
ajst-30189	35	23	,	,	PUNCT
ajst-30189	35	24	fixing	fix	VERB
ajst-30189	35	25	mechanism	mechanism	NOUN
ajst-30189	35	26	,	,	PUNCT
ajst-30189	35	27	perforation	perforation	NOUN
ajst-30189	35	28	mechanism	mechanism	NOUN
ajst-30189	35	29	,	,	PUNCT
ajst-30189	35	30	and	and	CCONJ
ajst-30189	35	31	stabilizing	stabilizing	NOUN
ajst-30189	35	32	mechanism	mechanism	NOUN
ajst-30189	35	33	.	.	PUNCT
ajst-30189	36	1	figure	figure	NOUN
ajst-30189	36	2	1	1	NUM
ajst-30189	36	3	.	.	PUNCT
ajst-30189	36	4	overall	overall	ADJ
ajst-30189	36	5	structure	structure	NOUN
ajst-30189	36	6	of	of	ADP
ajst-30189	36	7	a	a	DET
ajst-30189	36	8	new	new	ADJ
ajst-30189	36	9	hydraulic	hydraulic	NOUN
ajst-30189	36	10	sandblasting	sandblasting	NOUN
ajst-30189	36	11	perforation	perforation	NOUN
ajst-30189	36	12	device	device	NOUN
ajst-30189	36	13	2.2	2.2	NUM
ajst-30189	36	14	.	.	PUNCT
ajst-30189	37	1	working	work	VERB
ajst-30189	37	2	principle	principle	NOUN
ajst-30189	37	3	according	accord	VERB
ajst-30189	37	4	to	to	PART
ajst-30189	37	5	figure	figure	VERB
ajst-30189	37	6	1	1	NUM
ajst-30189	37	7	,	,	PUNCT
ajst-30189	37	8	the	the	DET
ajst-30189	37	9	working	work	VERB
ajst-30189	37	10	principle	principle	NOUN
ajst-30189	37	11	of	of	ADP
ajst-30189	37	12	the	the	DET
ajst-30189	37	13	hydraulic	hydraulic	NOUN
ajst-30189	37	14	sandblasting	sandblasting	NOUN
ajst-30189	37	15	perforation	perforation	NOUN
ajst-30189	37	16	device	device	NOUN
ajst-30189	37	17	can	can	AUX
ajst-30189	37	18	be	be	AUX
ajst-30189	37	19	observed	observe	VERB
ajst-30189	37	20	.	.	PUNCT
ajst-30189	38	1	when	when	SCONJ
ajst-30189	38	2	the	the	DET
ajst-30189	38	3	guide	guide	NOUN
ajst-30189	38	4	head	head	NOUN
ajst-30189	38	5	is	be	AUX
ajst-30189	38	6	started	start	VERB
ajst-30189	38	7	and	and	CCONJ
ajst-30189	38	8	placed	place	VERB
ajst-30189	38	9	inside	inside	ADP
ajst-30189	38	10	the	the	DET
ajst-30189	38	11	coal	coal	NOUN
ajst-30189	38	12	seam	seam	NOUN
ajst-30189	38	13	,	,	PUNCT
ajst-30189	38	14	the	the	DET
ajst-30189	38	15	device	device	NOUN
ajst-30189	38	16	can	can	AUX
ajst-30189	38	17	be	be	AUX
ajst-30189	38	18	guided	guide	VERB
ajst-30189	38	19	to	to	ADP
ajst-30189	38	20	the	the	DET
ajst-30189	38	21	designated	designate	VERB
ajst-30189	38	22	position	position	NOUN
ajst-30189	38	23	under	under	ADP
ajst-30189	38	24	the	the	DET
ajst-30189	38	25	starting	start	VERB
ajst-30189	38	26	action	action	NOUN
ajst-30189	38	27	of	of	ADP
ajst-30189	38	28	the	the	DET
ajst-30189	38	29	guide	guide	NOUN
ajst-30189	38	30	head	head	NOUN
ajst-30189	38	31	.	.	PUNCT
ajst-30189	39	1	then	then	ADV
ajst-30189	39	2	,	,	PUNCT
ajst-30189	39	3	by	by	ADP
ajst-30189	39	4	starting	start	VERB
ajst-30189	39	5	the	the	DET
ajst-30189	39	6	forward	forward	NOUN
ajst-30189	39	7	and	and	CCONJ
ajst-30189	39	8	reverse	reverse	ADJ
ajst-30189	39	9	motor	motor	NOUN
ajst-30189	39	10	2	2	NUM
ajst-30189	39	11	,	,	PUNCT
ajst-30189	39	12	the	the	DET
ajst-30189	39	13	threaded	thread	VERB
ajst-30189	39	14	rod	rod	NOUN
ajst-30189	39	15	2	2	NUM
ajst-30189	39	16	can	can	AUX
ajst-30189	39	17	be	be	AUX
ajst-30189	39	18	driven	drive	VERB
ajst-30189	39	19	to	to	PART
ajst-30189	39	20	rotate	rotate	VERB
ajst-30189	39	21	.	.	PUNCT
ajst-30189	40	1	under	under	ADP
ajst-30189	40	2	the	the	DET
ajst-30189	40	3	cooperating	cooperate	VERB
ajst-30189	40	4	restriction	restriction	NOUN
ajst-30189	40	5	of	of	ADP
ajst-30189	40	6	the	the	DET
ajst-30189	40	7	guide	guide	NOUN
ajst-30189	40	8	rod	rod	NOUN
ajst-30189	40	9	2	2	NUM
ajst-30189	40	10	,	,	PUNCT
ajst-30189	40	11	the	the	DET
ajst-30189	40	12	adjustment	adjustment	NOUN
ajst-30189	40	13	cylinder	cylinder	NOUN
ajst-30189	40	14	2	2	NUM
ajst-30189	40	15	can	can	AUX
ajst-30189	40	16	be	be	AUX
ajst-30189	40	17	driven	drive	VERB
ajst-30189	40	18	to	to	PART
ajst-30189	40	19	slide	slide	VERB
ajst-30189	40	20	inside	inside	ADV
ajst-30189	40	21	or	or	CCONJ
ajst-30189	40	22	outside	outside	ADP
ajst-30189	40	23	the	the	DET
ajst-30189	40	24	adjustment	adjustment	NOUN
ajst-30189	40	25	cylinder	cylinder	NOUN
ajst-30189	40	26	1	1	NUM
ajst-30189	40	27	.	.	PUNCT
ajst-30189	41	1	with	with	ADP
ajst-30189	41	2	the	the	DET
ajst-30189	41	3	movement	movement	NOUN
ajst-30189	41	4	of	of	ADP
ajst-30189	41	5	the	the	DET
ajst-30189	41	6	adjustment	adjustment	NOUN
ajst-30189	41	7	cylinder	cylinder	NOUN
ajst-30189	41	8	2	2	NUM
ajst-30189	41	9	,	,	PUNCT
ajst-30189	41	10	the	the	DET
ajst-30189	41	11	position	position	NOUN
ajst-30189	41	12	of	of	ADP
ajst-30189	41	13	the	the	DET
ajst-30189	41	14	electronic	electronic	ADJ
ajst-30189	41	15	locator	locator	NOUN
ajst-30189	41	16	and	and	CCONJ
ajst-30189	41	17	guide	guide	VERB
ajst-30189	41	18	head	head	NOUN
ajst-30189	41	19	can	can	AUX
ajst-30189	41	20	be	be	AUX
ajst-30189	41	21	driven	drive	VERB
ajst-30189	41	22	to	to	PART
ajst-30189	41	23	move	move	VERB
ajst-30189	41	24	,	,	PUNCT
ajst-30189	41	25	thereby	thereby	ADV
ajst-30189	41	26	achieving	achieve	VERB
ajst-30189	41	27	fine	fine	ADJ
ajst-30189	41	28	adjustment	adjustment	NOUN
ajst-30189	41	29	of	of	ADP
ajst-30189	41	30	the	the	DET
ajst-30189	41	31	position	position	NOUN
ajst-30189	41	32	of	of	ADP
ajst-30189	41	33	the	the	DET
ajst-30189	41	34	device	device	NOUN
ajst-30189	41	35	after	after	ADP
ajst-30189	41	36	placement	placement	NOUN
ajst-30189	41	37	.	.	PUNCT
ajst-30189	42	1	after	after	SCONJ
ajst-30189	42	2	the	the	DET
ajst-30189	42	3	adjustment	adjustment	NOUN
ajst-30189	42	4	is	be	AUX
ajst-30189	42	5	completed	complete	VERB
ajst-30189	42	6	,	,	PUNCT
ajst-30189	42	7	when	when	SCONJ
ajst-30189	42	8	it	it	PRON
ajst-30189	42	9	is	be	AUX
ajst-30189	42	10	necessary	necessary	ADJ
ajst-30189	42	11	to	to	PART
ajst-30189	42	12	fix	fix	VERB
ajst-30189	42	13	the	the	DET
ajst-30189	42	14	device	device	NOUN
ajst-30189	42	15	,	,	PUNCT
ajst-30189	42	16	people	people	NOUN
ajst-30189	42	17	only	only	ADV
ajst-30189	42	18	need	need	VERB
ajst-30189	42	19	to	to	PART
ajst-30189	42	20	start	start	VERB
ajst-30189	42	21	the	the	DET
ajst-30189	42	22	forward	forward	NOUN
ajst-30189	42	23	and	and	CCONJ
ajst-30189	42	24	reverse	reverse	ADJ
ajst-30189	42	25	motor	motor	NOUN
ajst-30189	42	26	1	1	NUM
ajst-30189	42	27	.	.	PUNCT
ajst-30189	43	1	with	with	ADP
ajst-30189	43	2	the	the	DET
ajst-30189	43	3	start	start	NOUN
ajst-30189	43	4	of	of	ADP
ajst-30189	43	5	the	the	DET
ajst-30189	43	6	forward	forward	ADJ
ajst-30189	43	7	and	and	CCONJ
ajst-30189	43	8	reverse	reverse	ADJ
ajst-30189	43	9	motor	motor	NOUN
ajst-30189	43	10	1	1	NUM
ajst-30189	43	11	,	,	PUNCT
ajst-30189	43	12	drive	drive	VERB
ajst-30189	43	13	the	the	DET
ajst-30189	43	14	rotation	rotation	NOUN
ajst-30189	43	15	of	of	ADP
ajst-30189	43	16	threaded	threaded	ADJ
ajst-30189	43	17	rod	rod	NOUN
ajst-30189	43	18	one	one	NUM
ajst-30189	43	19	,	,	PUNCT
ajst-30189	43	20	and	and	CCONJ
ajst-30189	43	21	with	with	ADP
ajst-30189	43	22	the	the	DET
ajst-30189	43	23	rotation	rotation	NOUN
ajst-30189	43	24	of	of	ADP
ajst-30189	43	25	threaded	threaded	ADJ
ajst-30189	43	26	rod	rod	NOUN
ajst-30189	43	27	one	one	NUM
ajst-30189	43	28	,	,	PUNCT
ajst-30189	43	29	and	and	CCONJ
ajst-30189	43	30	under	under	ADP
ajst-30189	43	31	the	the	DET
ajst-30189	43	32	restriction	restriction	NOUN
ajst-30189	43	33	of	of	ADP
ajst-30189	43	34	the	the	DET
ajst-30189	43	35	guiding	guide	VERB
ajst-30189	43	36	rod	rod	NOUN
ajst-30189	43	37	1	1	NUM
ajst-30189	43	38	,	,	PUNCT
ajst-30189	43	39	it	it	PRON
ajst-30189	43	40	can	can	AUX
ajst-30189	43	41	drive	drive	VERB
ajst-30189	43	42	the	the	DET
ajst-30189	43	43	threaded	thread	VERB
ajst-30189	43	44	block	block	NOUN
ajst-30189	43	45	to	to	PART
ajst-30189	43	46	move	move	VERB
ajst-30189	43	47	.	.	PUNCT
ajst-30189	44	1	with	with	ADP
ajst-30189	44	2	the	the	DET
ajst-30189	44	3	movement	movement	NOUN
ajst-30189	44	4	of	of	ADP
ajst-30189	44	5	the	the	DET
ajst-30189	44	6	threaded	thread	VERB
ajst-30189	44	7	block	block	NOUN
ajst-30189	44	8	,	,	PUNCT
ajst-30189	44	9	it	it	PRON
ajst-30189	44	10	can	can	AUX
ajst-30189	44	11	drive	drive	VERB
ajst-30189	44	12	the	the	DET
ajst-30189	44	13	movement	movement	NOUN
ajst-30189	44	14	of	of	ADP
ajst-30189	44	15	the	the	DET
ajst-30189	44	16	fixed	fix	VERB
ajst-30189	44	17	seat	seat	NOUN
ajst-30189	44	18	.	.	PUNCT
ajst-30189	45	1	with	with	ADP
ajst-30189	45	2	the	the	DET
ajst-30189	45	3	movement	movement	NOUN
ajst-30189	45	4	of	of	ADP
ajst-30189	45	5	the	the	DET
ajst-30189	45	6	fixed	fix	VERB
ajst-30189	45	7	seat	seat	NOUN
ajst-30189	45	8	,	,	PUNCT
ajst-30189	45	9	it	it	PRON
ajst-30189	45	10	can	can	AUX
ajst-30189	45	11	drive	drive	VERB
ajst-30189	45	12	the	the	DET
ajst-30189	45	13	rotation	rotation	NOUN
ajst-30189	45	14	of	of	ADP
ajst-30189	45	15	the	the	DET
ajst-30189	45	16	driving	driving	NOUN
ajst-30189	45	17	rod	rod	NOUN
ajst-30189	45	18	.	.	PUNCT
ajst-30189	46	1	through	through	ADP
ajst-30189	46	2	the	the	DET
ajst-30189	46	3	rotation	rotation	NOUN
ajst-30189	46	4	of	of	ADP
ajst-30189	46	5	the	the	DET
ajst-30189	46	6	driving	drive	VERB
ajst-30189	46	7	rod	rod	NOUN
ajst-30189	46	8	,	,	PUNCT
ajst-30189	46	9	under	under	ADP
ajst-30189	46	10	the	the	DET
ajst-30189	46	11	support	support	NOUN
ajst-30189	46	12	of	of	ADP
ajst-30189	46	13	the	the	DET
ajst-30189	46	14	connecting	connect	VERB
ajst-30189	46	15	column	column	NOUN
ajst-30189	46	16	2	2	NUM
ajst-30189	46	17	and	and	CCONJ
ajst-30189	46	18	the	the	DET
ajst-30189	46	19	connection	connection	NOUN
ajst-30189	46	20	of	of	ADP
ajst-30189	46	21	the	the	DET
ajst-30189	46	22	connecting	connect	VERB
ajst-30189	46	23	column	column	NOUN
ajst-30189	46	24	1	1	NUM
ajst-30189	46	25	,	,	PUNCT
ajst-30189	46	26	it	it	PRON
ajst-30189	46	27	can	can	AUX
ajst-30189	46	28	drive	drive	VERB
ajst-30189	46	29	the	the	DET
ajst-30189	46	30	limit	limit	NOUN
ajst-30189	46	31	claw	claw	NOUN
ajst-30189	46	32	to	to	PART
ajst-30189	46	33	expand	expand	VERB
ajst-30189	46	34	until	until	SCONJ
ajst-30189	46	35	it	it	PRON
ajst-30189	46	36	is	be	AUX
ajst-30189	46	37	inserted	insert	VERB
ajst-30189	46	38	into	into	ADP
ajst-30189	46	39	the	the	DET
ajst-30189	46	40	coal	coal	NOUN
ajst-30189	46	41	seam	seam	NOUN
ajst-30189	46	42	,	,	PUNCT
ajst-30189	46	43	thereby	thereby	ADV
ajst-30189	46	44	achieving	achieve	VERB
ajst-30189	46	45	the	the	DET
ajst-30189	46	46	positioning	positioning	NOUN
ajst-30189	46	47	and	and	CCONJ
ajst-30189	46	48	fixation	fixation	NOUN
ajst-30189	46	49	of	of	ADP
ajst-30189	46	50	the	the	DET
ajst-30189	46	51	device	device	NOUN
ajst-30189	46	52	after	after	ADP
ajst-30189	46	53	placement	placement	NOUN
ajst-30189	46	54	.	.	PUNCT
ajst-30189	47	1	this	this	PRON
ajst-30189	47	2	effectively	effectively	ADV
ajst-30189	47	3	avoids	avoid	VERB
ajst-30189	47	4	the	the	DET
ajst-30189	47	5	displacement	displacement	NOUN
ajst-30189	47	6	of	of	ADP
ajst-30189	47	7	the	the	DET
ajst-30189	47	8	sandblasting	sandblasting	NOUN
ajst-30189	47	9	perforation	perforation	NOUN
ajst-30189	47	10	position	position	NOUN
ajst-30189	47	11	caused	cause	VERB
ajst-30189	47	12	by	by	ADP
ajst-30189	47	13	its	its	PRON
ajst-30189	47	14	instability	instability	NOUN
ajst-30189	47	15	,	,	PUNCT
ajst-30189	47	16	further	far	ADV
ajst-30189	47	17	ensures	ensure	VERB
ajst-30189	47	18	the	the	DET
ajst-30189	47	19	accuracy	accuracy	NOUN
ajst-30189	47	20	of	of	ADP
ajst-30189	47	21	sandblasting	sandblast	VERB
ajst-30189	47	22	perforation	perforation	NOUN
ajst-30189	47	23	of	of	ADP
ajst-30189	47	24	the	the	DET
ajst-30189	47	25	coal	coal	NOUN
ajst-30189	47	26	seam	seam	NOUN
ajst-30189	47	27	,	,	PUNCT
ajst-30189	47	28	and	and	CCONJ
ajst-30189	47	29	avoids	avoid	VERB
ajst-30189	47	30	the	the	DET
ajst-30189	47	31	problem	problem	NOUN
ajst-30189	47	32	of	of	ADP
ajst-30189	47	33	great	great	ADJ
ajst-30189	47	34	safety	safety	NOUN
ajst-30189	47	35	hazards	hazard	NOUN
ajst-30189	47	36	to	to	ADP
ajst-30189	47	37	the	the	DET
ajst-30189	47	38	lives	life	NOUN
ajst-30189	47	39	of	of	ADP
ajst-30189	47	40	workers	worker	NOUN
ajst-30189	47	41	caused	cause	VERB
ajst-30189	47	42	by	by	ADP
ajst-30189	47	43	coal	coal	NOUN
ajst-30189	47	44	seam	seam	NOUN
ajst-30189	47	45	collapse	collapse	NOUN
ajst-30189	47	46	in	in	ADP
ajst-30189	47	47	severe	severe	ADJ
ajst-30189	47	48	cases	case	NOUN
ajst-30189	47	49	.	.	PUNCT
ajst-30189	48	1	2.3	2.3	NUM
ajst-30189	48	2	.	.	PUNCT
ajst-30189	48	3	determination	determination	NOUN
ajst-30189	48	4	of	of	ADP
ajst-30189	48	5	main	main	ADJ
ajst-30189	48	6	design	design	NOUN
ajst-30189	48	7	parameters	parameter	NOUN
ajst-30189	48	8	based	base	VERB
ajst-30189	48	9	on	on	ADP
ajst-30189	48	10	the	the	DET
ajst-30189	48	11	optimization	optimization	NOUN
ajst-30189	48	12	results	result	NOUN
ajst-30189	48	13	of	of	ADP
ajst-30189	48	14	nozzle	nozzle	NOUN
ajst-30189	48	15	structure	structure	NOUN
ajst-30189	48	16	parameters	parameter	NOUN
ajst-30189	48	17	and	and	CCONJ
ajst-30189	48	18	production	production	NOUN
ajst-30189	48	19	materials	material	NOUN
ajst-30189	48	20	mentioned	mention	VERB
ajst-30189	48	21	earlier	early	ADV
ajst-30189	48	22	,	,	PUNCT
ajst-30189	48	23	and	and	CCONJ
ajst-30189	48	24	taking	take	VERB
ajst-30189	48	25	into	into	ADP
ajst-30189	48	26	account	account	NOUN
ajst-30189	48	27	the	the	DET
ajst-30189	48	28	actual	actual	ADJ
ajst-30189	48	29	site	site	NOUN
ajst-30189	48	30	conditions	condition	NOUN
ajst-30189	48	31	,	,	PUNCT
ajst-30189	48	32	a	a	DET
ajst-30189	48	33	hydraulic	hydraulic	ADJ
ajst-30189	48	34	jet	jet	NOUN
ajst-30189	48	35	fracturing	fracture	VERB
ajst-30189	48	36	downhole	downhole	NOUN
ajst-30189	48	37	tool	tool	NOUN
ajst-30189	48	38	suitable	suitable	ADJ
ajst-30189	48	39	for	for	ADP
ajst-30189	48	40	51/2"casing	51/2"casing	NUM
ajst-30189	48	41	was	be	AUX
ajst-30189	48	42	finally	finally	ADV
ajst-30189	48	43	calculated	calculate	VERB
ajst-30189	48	44	.	.	PUNCT
ajst-30189	49	1	combined	combine	VERB
ajst-30189	49	2	with	with	ADP
ajst-30189	49	3	reference	reference	NOUN
ajst-30189	49	4	materials	material	NOUN
ajst-30189	49	5	,	,	PUNCT
ajst-30189	49	6	preliminary	preliminary	ADJ
ajst-30189	49	7	design	design	NOUN
ajst-30189	49	8	parameters	parameter	NOUN
ajst-30189	49	9	for	for	ADP
ajst-30189	49	10	a	a	DET
ajst-30189	49	11	new	new	ADJ
ajst-30189	49	12	type	type	NOUN
ajst-30189	49	13	of	of	ADP
ajst-30189	49	14	hydraulic	hydraulic	NOUN
ajst-30189	49	15	sandblasting	sandblasting	NOUN
ajst-30189	49	16	perforation	perforation	NOUN
ajst-30189	49	17	wereproposed	werepropose	VERB
ajst-30189	49	18	,	,	PUNCT
ajst-30189	49	19	as	as	SCONJ
ajst-30189	49	20	shown	show	VERB
ajst-30189	49	21	in	in	ADP
ajst-30189	49	22	table	table	NOUN
ajst-30189	49	23	1	1	NUM
ajst-30189	49	24	.	.	PUNCT
ajst-30189	49	25	table	table	NOUN
ajst-30189	49	26	1	1	NUM
ajst-30189	49	27	.	.	PUNCT
ajst-30189	49	28	main	main	ADJ
ajst-30189	49	29	technical	technical	ADJ
ajst-30189	49	30	parameters	parameter	NOUN
ajst-30189	49	31	of	of	ADP
ajst-30189	49	32	the	the	DET
ajst-30189	49	33	new	new	ADJ
ajst-30189	49	34	hydraulic	hydraulic	NOUN
ajst-30189	49	35	sandblasting	sandblasting	NOUN
ajst-30189	49	36	perforation	perforation	NOUN
ajst-30189	49	37	device	device	NOUN
ajst-30189	49	38	parameter	parameter	NOUN
ajst-30189	49	39	name	name	NOUN
ajst-30189	49	40	numerical	numerical	PROPN
ajst-30189	49	41	value	value	PROPN
ajst-30189	49	42	applicable	applicable	ADJ
ajst-30189	49	43	well	well	INTJ
ajst-30189	49	44	diameter	diameter	NOUN
ajst-30189	49	45	139.7	139.7	NUM
ajst-30189	49	46	mm	mm	NOUN
ajst-30189	49	47	maximum	maximum	ADJ
ajst-30189	49	48	outer	outer	ADJ
ajst-30189	49	49	diameter	diameter	NOUN
ajst-30189	49	50	of	of	ADP
ajst-30189	49	51	the	the	DET
ajst-30189	49	52	tool	tool	NOUN
ajst-30189	49	53	110	110	NUM
ajst-30189	49	54	mm	mm	NOUN
ajst-30189	49	55	inside	inside	ADP
ajst-30189	49	56	diameter	diameter	NOUN
ajst-30189	49	57	45	45	NUM
ajst-30189	49	58	mm	mm	PROPN
ajst-30189	49	59	total	total	ADJ
ajst-30189	49	60	length	length	NOUN
ajst-30189	49	61	of	of	ADP
ajst-30189	49	62	tool	tool	NOUN
ajst-30189	49	63	450	450	NUM
ajst-30189	49	64	mm	mm	NOUN
ajst-30189	49	65	diameter	diameter	NOUN
ajst-30189	49	66	of	of	ADP
ajst-30189	49	67	nozzle	nozzle	NOUN
ajst-30189	49	68	outlet	outlet	NOUN
ajst-30189	49	69	6	6	NUM
ajst-30189	49	70	mm	mm	NOUN
ajst-30189	49	71	pressure	pressure	NOUN
ajst-30189	49	72	-	-	PUNCT
ajst-30189	49	73	bearing	bear	VERB
ajst-30189	49	74	90mpa	90mpa	NOUN
ajst-30189	49	75	3	3	NUM
ajst-30189	49	76	.	.	PUNCT
ajst-30189	49	77	fixed	fix	VERB
ajst-30189	49	78	system	system	NOUN
ajst-30189	49	79	design	design	VERB
ajst-30189	49	80	the	the	DET
ajst-30189	49	81	fixed	fix	VERB
ajst-30189	49	82	mechanism	mechanism	NOUN
ajst-30189	49	83	is	be	AUX
ajst-30189	49	84	the	the	DET
ajst-30189	49	85	core	core	NOUN
ajst-30189	49	86	component	component	NOUN
ajst-30189	49	87	for	for	ADP
ajst-30189	49	88	achieving	achieve	VERB
ajst-30189	49	89	accurate	accurate	ADJ
ajst-30189	49	90	positioning	positioning	NOUN
ajst-30189	49	91	and	and	CCONJ
ajst-30189	49	92	stable	stable	ADJ
ajst-30189	49	93	fixation	fixation	NOUN
ajst-30189	49	94	of	of	ADP
ajst-30189	49	95	the	the	DET
ajst-30189	49	96	device	device	NOUN
ajst-30189	49	97	in	in	ADP
ajst-30189	49	98	coal	coal	NOUN
ajst-30189	49	99	and	and	CCONJ
ajst-30189	49	100	rock	rock	NOUN
ajst-30189	49	101	layers	layer	NOUN
ajst-30189	49	102	.	.	PUNCT
ajst-30189	50	1	it	it	PRON
ajst-30189	50	2	consists	consist	VERB
ajst-30189	50	3	of	of	ADP
ajst-30189	50	4	threaded	threaded	ADJ
ajst-30189	50	5	rod	rod	NOUN
ajst-30189	50	6	1	1	NUM
ajst-30189	50	7	,	,	PUNCT
ajst-30189	50	8	threaded	threaded	ADJ
ajst-30189	50	9	block	block	NOUN
ajst-30189	50	10	,	,	PUNCT
ajst-30189	50	11	fixed	fixed	ADJ
ajst-30189	50	12	seat	seat	NOUN
ajst-30189	50	13	,	,	PUNCT
ajst-30189	50	14	driving	drive	VERB
ajst-30189	50	15	rod	rod	NOUN
ajst-30189	50	16	,	,	PUNCT
ajst-30189	50	17	connecting	connect	VERB
ajst-30189	50	18	column	column	NOUN
ajst-30189	50	19	1	1	NUM
ajst-30189	50	20	,	,	PUNCT
ajst-30189	50	21	limiting	limit	VERB
ajst-30189	50	22	claw	claw	NOUN
ajst-30189	50	23	,	,	PUNCT
ajst-30189	50	24	and	and	CCONJ
ajst-30189	50	25	connecting	connect	VERB
ajst-30189	50	26	column	column	NOUN
ajst-30189	50	27	2	2	NUM
ajst-30189	50	28	,	,	PUNCT
ajst-30189	50	29	as	as	SCONJ
ajst-30189	50	30	shown	show	VERB
ajst-30189	50	31	in	in	ADP
ajst-30189	50	32	figure	figure	NOUN
ajst-30189	50	33	2	2	NUM
ajst-30189	50	34	.	.	PUNCT
ajst-30189	50	35	when	when	SCONJ
ajst-30189	50	36	the	the	DET
ajst-30189	50	37	threaded	thread	VERB
ajst-30189	50	38	rod	rod	NOUN
ajst-30189	50	39	rotates	rotate	NOUN
ajst-30189	50	40	,	,	PUNCT
ajst-30189	50	41	according	accord	VERB
ajst-30189	50	42	to	to	ADP
ajst-30189	50	43	the	the	DET
ajst-30189	50	44	principle	principle	NOUN
ajst-30189	50	45	of	of	ADP
ajst-30189	50	46	threaded	thread	VERB
ajst-30189	50	47	transmission	transmission	NOUN
ajst-30189	50	48	,	,	PUNCT
ajst-30189	50	49	the	the	DET
ajst-30189	50	50	threaded	thread	VERB
ajst-30189	50	51	block	block	NOUN
ajst-30189	50	52	connected	connect	VERB
ajst-30189	50	53	to	to	ADP
ajst-30189	50	54	it	it	PRON
ajst-30189	50	55	will	will	AUX
ajst-30189	50	56	move	move	VERB
ajst-30189	50	57	along	along	ADP
ajst-30189	50	58	the	the	DET
ajst-30189	50	59	axial	axial	ADJ
ajst-30189	50	60	direction	direction	NOUN
ajst-30189	50	61	of	of	ADP
ajst-30189	50	62	the	the	DET
ajst-30189	50	63	threaded	thread	VERB
ajst-30189	50	64	rod	rod	NOUN
ajst-30189	50	65	.	.	PUNCT
ajst-30189	51	1	the	the	DET
ajst-30189	51	2	outer	outer	ADJ
ajst-30189	51	3	surface	surface	NOUN
ajst-30189	51	4	of	of	ADP
ajst-30189	51	5	the	the	DET
ajst-30189	51	6	threaded	thread	VERB
ajst-30189	51	7	block	block	NOUN
ajst-30189	51	8	is	be	AUX
ajst-30189	51	9	fixedly	fixedly	ADV
ajst-30189	51	10	connected	connect	VERB
ajst-30189	51	11	to	to	ADP
ajst-30189	51	12	a	a	DET
ajst-30189	51	13	set	set	NOUN
ajst-30189	51	14	of	of	ADP
ajst-30189	51	15	fixed	fix	VERB
ajst-30189	51	16	seats	seat	NOUN
ajst-30189	51	17	,	,	PUNCT
ajst-30189	51	18	and	and	CCONJ
ajst-30189	51	19	as	as	ADP
ajst-30189	51	20	the	the	DET
ajst-30189	51	21	threaded	thread	VERB
ajst-30189	51	22	block	block	NOUN
ajst-30189	51	23	moves	move	NOUN
ajst-30189	51	24	,	,	PUNCT
ajst-30189	51	25	the	the	DET
ajst-30189	51	26	fixed	fix	VERB
ajst-30189	51	27	seats	seat	NOUN
ajst-30189	51	28	also	also	ADV
ajst-30189	51	29	move	move	VERB
ajst-30189	51	30	accordingly	accordingly	ADV
ajst-30189	51	31	.	.	PUNCT
ajst-30189	52	1	the	the	DET
ajst-30189	52	2	inner	inner	ADJ
ajst-30189	52	3	wall	wall	NOUN
ajst-30189	52	4	of	of	ADP
ajst-30189	52	5	each	each	DET
ajst-30189	52	6	fixed	fix	VERB
ajst-30189	52	7	seat	seat	NOUN
ajst-30189	52	8	is	be	AUX
ajst-30189	52	9	rotatably	rotatably	ADV
ajst-30189	52	10	connected	connect	VERB
ajst-30189	52	11	to	to	ADP
ajst-30189	52	12	a	a	DET
ajst-30189	52	13	set	set	NOUN
ajst-30189	52	14	of	of	ADP
ajst-30189	52	15	driving	drive	VERB
ajst-30189	52	16	rods	rod	NOUN
ajst-30189	52	17	,	,	PUNCT
ajst-30189	52	18	and	and	CCONJ
ajst-30189	52	19	the	the	DET
ajst-30189	52	20	inner	inner	ADJ
ajst-30189	52	21	wall	wall	NOUN
ajst-30189	52	22	of	of	ADP
ajst-30189	52	23	the	the	DET
ajst-30189	52	24	driving	drive	VERB
ajst-30189	52	25	rod	rod	NOUN
ajst-30189	52	26	is	be	AUX
ajst-30189	52	27	fixedly	fixedly	ADV
ajst-30189	52	28	connected	connect	VERB
ajst-30189	52	29	to	to	ADP
ajst-30189	52	30	a	a	DET
ajst-30189	52	31	connecting	connect	VERB
ajst-30189	52	32	column	column	NOUN
ajst-30189	52	33	.	.	PUNCT
ajst-30189	53	1	when	when	SCONJ
ajst-30189	53	2	the	the	DET
ajst-30189	53	3	fixed	fix	VERB
ajst-30189	53	4	seat	seat	NOUN
ajst-30189	53	5	moves	move	NOUN
ajst-30189	53	6	,	,	PUNCT
ajst-30189	53	7	the	the	DET
ajst-30189	53	8	driving	drive	VERB
ajst-30189	53	9	rod	rod	NOUN
ajst-30189	53	10	will	will	AUX
ajst-30189	53	11	rotate	rotate	VERB
ajst-30189	53	12	around	around	ADP
ajst-30189	53	13	the	the	DET
ajst-30189	53	14	connecting	connect	VERB
ajst-30189	53	15	column	column	NOUN
ajst-30189	53	16	.	.	PUNCT
ajst-30189	54	1	the	the	DET
ajst-30189	54	2	outer	outer	ADJ
ajst-30189	54	3	surface	surface	NOUN
ajst-30189	54	4	of	of	ADP
ajst-30189	54	5	connecting	connect	VERB
ajst-30189	54	6	column	column	NOUN
ajst-30189	54	7	one	one	NOUN
ajst-30189	54	8	is	be	AUX
ajst-30189	54	9	rotatably	rotatably	ADV
ajst-30189	54	10	connected	connect	VERB
ajst-30189	54	11	to	to	ADP
ajst-30189	54	12	the	the	DET
ajst-30189	54	13	limiting	limit	VERB
ajst-30189	54	14	claw	claw	NOUN
ajst-30189	54	15	,	,	PUNCT
ajst-30189	54	16	and	and	CCONJ
ajst-30189	54	17	the	the	DET
ajst-30189	54	18	inner	inner	ADJ
ajst-30189	54	19	wall	wall	NOUN
ajst-30189	54	20	of	of	ADP
ajst-30189	54	21	the	the	DET
ajst-30189	54	22	limiting	limit	VERB
ajst-30189	54	23	claw	claw	NOUN
ajst-30189	54	24	is	be	AUX
ajst-30189	54	25	fixedly	fixedly	ADV
ajst-30189	54	26	connected	connect	VERB
ajst-30189	54	27	to	to	ADP
ajst-30189	54	28	connecting	connect	VERB
ajst-30189	54	29	column	column	NOUN
ajst-30189	54	30	two	two	NUM
ajst-30189	54	31	,	,	PUNCT
ajst-30189	54	32	which	which	PRON
ajst-30189	54	33	is	be	AUX
ajst-30189	54	34	rotatably	rotatably	ADV
ajst-30189	54	35	connected	connect	VERB
ajst-30189	54	36	to	to	ADP
ajst-30189	54	37	the	the	DET
ajst-30189	54	38	inner	inner	ADJ
ajst-30189	54	39	wall	wall	NOUN
ajst-30189	54	40	of	of	ADP
ajst-30189	54	41	the	the	DET
ajst-30189	54	42	positioning	positioning	NOUN
ajst-30189	54	43	cylinder	cylinder	NOUN
ajst-30189	54	44	.	.	PUNCT
ajst-30189	55	1	through	through	ADP
ajst-30189	55	2	this	this	DET
ajst-30189	55	3	structural	structural	ADJ
ajst-30189	55	4	design	design	NOUN
ajst-30189	55	5	,	,	PUNCT
ajst-30189	55	6	when	when	SCONJ
ajst-30189	55	7	the	the	DET
ajst-30189	55	8	driving	drive	VERB
ajst-30189	55	9	rod	rod	NOUN
ajst-30189	55	10	rotates	rotate	NOUN
ajst-30189	55	11	,	,	PUNCT
ajst-30189	55	12	under	under	ADP
ajst-30189	55	13	the	the	DET
ajst-30189	55	14	support	support	NOUN
ajst-30189	55	15	of	of	ADP
ajst-30189	55	16	the	the	DET
ajst-30189	55	17	connecting	connect	VERB
ajst-30189	55	18	column	column	NOUN
ajst-30189	55	19	2	2	NUM
ajst-30189	55	20	,	,	PUNCT
ajst-30189	55	21	the	the	DET
ajst-30189	55	22	limit	limit	NOUN
ajst-30189	55	23	claw	claw	NOUN
ajst-30189	55	24	can	can	AUX
ajst-30189	55	25	expand	expand	VERB
ajst-30189	55	26	or	or	CCONJ
ajst-30189	55	27	contract	contract	VERB
ajst-30189	55	28	around	around	ADP
ajst-30189	55	29	the	the	DET
ajst-30189	55	30	connecting	connect	VERB
ajst-30189	55	31	column	column	NOUN
ajst-30189	55	32	1	1	NUM
ajst-30189	55	33	,	,	PUNCT
ajst-30189	55	34	achieving	achieve	VERB
ajst-30189	55	35	the	the	DET
ajst-30189	55	36	fixation	fixation	NOUN
ajst-30189	55	37	and	and	CCONJ
ajst-30189	55	38	release	release	NOUN
ajst-30189	55	39	of	of	ADP
ajst-30189	55	40	the	the	DET
ajst-30189	55	41	device	device	NOUN
ajst-30189	55	42	in	in	ADP
ajst-30189	55	43	the	the	DET
ajst-30189	55	44	coal	coal	NOUN
ajst-30189	55	45	rock	rock	NOUN
ajst-30189	55	46	layer	layer	NOUN
ajst-30189	55	47	.	.	PUNCT
ajst-30189	56	1	figure	figure	NOUN
ajst-30189	56	2	2	2	NUM
ajst-30189	56	3	.	.	PUNCT
ajst-30189	56	4	schematic	schematic	ADJ
ajst-30189	56	5	diagram	diagram	NOUN
ajst-30189	56	6	of	of	ADP
ajst-30189	56	7	positioning	positioning	NOUN
ajst-30189	56	8	cylinder	cylinder	NOUN
ajst-30189	56	9	structure	structure	NOUN
ajst-30189	56	10	1	1	NUM
ajst-30189	56	11	-	-	PUNCT
ajst-30189	56	12	limit	limit	NOUN
ajst-30189	56	13	claw	claw	NOUN
ajst-30189	56	14	;	;	PUNCT
ajst-30189	56	15	2drive	2drive	NUM
ajst-30189	56	16	rod	rod	NOUN
ajst-30189	56	17	;	;	PUNCT
ajst-30189	56	18	3	3	NUM
ajst-30189	56	19	-	-	PUNCT
ajst-30189	56	20	thread	thread	NOUN
ajst-30189	56	21	block	block	NOUN
ajst-30189	56	22	;	;	PUNCT
ajst-30189	56	23	4	4	NUM
ajst-30189	56	24	-	-	PUNCT
ajst-30189	56	25	connecting	connect	VERB
ajst-30189	56	26	pillar	pillar	NOUN
ajst-30189	56	27	two	two	NUM
ajst-30189	56	28	;	;	PUNCT
ajst-30189	56	29	5fixed	5fixed	NUM
ajst-30189	56	30	seat	seat	NOUN
ajst-30189	56	31	;	;	PUNCT
ajst-30189	56	32	6	6	NUM
ajst-30189	56	33	-	-	PUNCT
ajst-30189	56	34	connecting	connect	VERB
ajst-30189	56	35	pillar	pillar	NOUN
ajst-30189	56	36	one	one	NUM
ajst-30189	56	37	;	;	PUNCT
ajst-30189	56	38	7	7	NUM
ajst-30189	56	39	-	-	PUNCT
ajst-30189	56	40	forward	forward	NOUN
ajst-30189	56	41	and	and	CCONJ
ajst-30189	56	42	reverse	reverse	VERB
ajst-30189	56	43	motor	motor	NOUN
ajst-30189	56	44	one	one	NUM
ajst-30189	56	45	;	;	PUNCT
ajst-30189	56	46	8	8	NUM
ajst-30189	56	47	-	-	PUNCT
ajst-30189	56	48	guiding	guide	VERB
ajst-30189	56	49	rod	rod	NOUN
ajst-30189	56	50	one	one	NUM
ajst-30189	56	51	一	一	NOUN
ajst-30189	56	52	;	;	PUNCT
ajst-30189	56	53	138	138	NUM
ajst-30189	56	54	4	4	NUM
ajst-30189	56	55	.	.	PUNCT
ajst-30189	56	56	perforation	perforation	NOUN
ajst-30189	56	57	system	system	NOUN
ajst-30189	56	58	design	design	VERB
ajst-30189	56	59	the	the	DET
ajst-30189	56	60	perforation	perforation	NOUN
ajst-30189	56	61	system	system	NOUN
ajst-30189	56	62	is	be	AUX
ajst-30189	56	63	the	the	DET
ajst-30189	56	64	core	core	ADJ
ajst-30189	56	65	operational	operational	ADJ
ajst-30189	56	66	module	module	NOUN
ajst-30189	56	67	of	of	ADP
ajst-30189	56	68	the	the	DET
ajst-30189	56	69	entire	entire	ADJ
ajst-30189	56	70	hydraulic	hydraulic	NOUN
ajst-30189	56	71	sandblasting	sandblasting	NOUN
ajst-30189	56	72	perforation	perforation	NOUN
ajst-30189	56	73	device	device	NOUN
ajst-30189	56	74	,	,	PUNCT
ajst-30189	56	75	and	and	CCONJ
ajst-30189	56	76	its	its	PRON
ajst-30189	56	77	performance	performance	NOUN
ajst-30189	56	78	directly	directly	ADV
ajst-30189	56	79	determines	determine	VERB
ajst-30189	56	80	the	the	DET
ajst-30189	56	81	efficiency	efficiency	NOUN
ajst-30189	56	82	and	and	CCONJ
ajst-30189	56	83	quality	quality	NOUN
ajst-30189	56	84	of	of	ADP
ajst-30189	56	85	coal	coal	NOUN
ajst-30189	56	86	and	and	CCONJ
ajst-30189	56	87	rock	rock	NOUN
ajst-30189	56	88	mining	mining	NOUN
ajst-30189	56	89	,	,	PUNCT
ajst-30189	56	90	as	as	SCONJ
ajst-30189	56	91	shown	show	VERB
ajst-30189	56	92	in	in	ADP
ajst-30189	56	93	figure	figure	NOUN
ajst-30189	56	94	3	3	NUM
ajst-30189	56	95	.	.	PUNCT
ajst-30189	56	96	figure	figure	NOUN
ajst-30189	56	97	3	3	NUM
ajst-30189	56	98	.	.	PUNCT
ajst-30189	56	99	schematic	schematic	ADJ
ajst-30189	56	100	diagram	diagram	NOUN
ajst-30189	56	101	of	of	ADP
ajst-30189	56	102	perforation	perforation	NOUN
ajst-30189	56	103	system	system	NOUN
ajst-30189	56	104	structure	structure	NOUN
ajst-30189	56	105	4.1	4.1	NUM
ajst-30189	56	106	.	.	PUNCT
ajst-30189	57	1	structure	structure	NOUN
ajst-30189	57	2	of	of	ADP
ajst-30189	57	3	sandblasting	sandblasting	NOUN
ajst-30189	57	4	perforator	perforator	NOUN
ajst-30189	57	5	the	the	DET
ajst-30189	57	6	spray	spray	NOUN
ajst-30189	57	7	gun	gun	NOUN
ajst-30189	57	8	assembly	assembly	NOUN
ajst-30189	57	9	includes	include	VERB
ajst-30189	57	10	the	the	DET
ajst-30189	57	11	gun	gun	NOUN
ajst-30189	57	12	body	body	NOUN
ajst-30189	57	13	,	,	PUNCT
ajst-30189	57	14	protective	protective	ADJ
ajst-30189	57	15	cover	cover	NOUN
ajst-30189	57	16	,	,	PUNCT
ajst-30189	57	17	and	and	CCONJ
ajst-30189	57	18	nozzle	nozzle	NOUN
ajst-30189	57	19	,	,	PUNCT
ajst-30189	57	20	as	as	SCONJ
ajst-30189	57	21	shown	show	VERB
ajst-30189	57	22	in	in	ADP
ajst-30189	57	23	figure	figure	NOUN
ajst-30189	57	24	4	4	NUM
ajst-30189	57	25	,	,	PUNCT
ajst-30189	57	26	and	and	CCONJ
ajst-30189	57	27	is	be	AUX
ajst-30189	57	28	one	one	NUM
ajst-30189	57	29	of	of	ADP
ajst-30189	57	30	the	the	DET
ajst-30189	57	31	key	key	ADJ
ajst-30189	57	32	components	component	NOUN
ajst-30189	57	33	in	in	ADP
ajst-30189	57	34	the	the	DET
ajst-30189	57	35	entire	entire	ADJ
ajst-30189	57	36	fracturing	fracturing	NOUN
ajst-30189	57	37	pipe	pipe	NOUN
ajst-30189	57	38	string	string	NOUN
ajst-30189	57	39	.	.	PUNCT
ajst-30189	58	1	the	the	DET
ajst-30189	58	2	highpressure	highpressure	ADJ
ajst-30189	58	3	sand	sand	NOUN
ajst-30189	58	4	carrying	carry	VERB
ajst-30189	58	5	fracturing	fracturing	NOUN
ajst-30189	58	6	fluid	fluid	NOUN
ajst-30189	58	7	pumped	pump	VERB
ajst-30189	58	8	into	into	ADP
ajst-30189	58	9	the	the	DET
ajst-30189	58	10	ground	ground	NOUN
ajst-30189	58	11	will	will	AUX
ajst-30189	58	12	be	be	AUX
ajst-30189	58	13	converted	convert	VERB
ajst-30189	58	14	into	into	ADP
ajst-30189	58	15	a	a	DET
ajst-30189	58	16	high	high	ADJ
ajst-30189	58	17	-	-	PUNCT
ajst-30189	58	18	speed	speed	NOUN
ajst-30189	58	19	jet	jet	NOUN
ajst-30189	58	20	through	through	ADP
ajst-30189	58	21	a	a	DET
ajst-30189	58	22	small	small	ADJ
ajst-30189	58	23	diameter	diameter	NOUN
ajst-30189	58	24	nozzle	nozzle	NOUN
ajst-30189	58	25	,	,	PUNCT
ajst-30189	58	26	and	and	CCONJ
ajst-30189	58	27	then	then	ADV
ajst-30189	58	28	impact	impact	VERB
ajst-30189	58	29	the	the	DET
ajst-30189	58	30	inner	inner	ADJ
ajst-30189	58	31	wall	wall	NOUN
ajst-30189	58	32	of	of	ADP
ajst-30189	58	33	the	the	DET
ajst-30189	58	34	casing	casing	NOUN
ajst-30189	58	35	to	to	PART
ajst-30189	58	36	carry	carry	VERB
ajst-30189	58	37	out	out	ADP
ajst-30189	58	38	perforation	perforation	NOUN
ajst-30189	58	39	.	.	PUNCT
ajst-30189	59	1	the	the	DET
ajst-30189	59	2	nozzle	nozzle	NOUN
ajst-30189	59	3	is	be	AUX
ajst-30189	59	4	installed	instal	VERB
ajst-30189	59	5	in	in	ADP
ajst-30189	59	6	the	the	DET
ajst-30189	59	7	conical	conical	ADJ
ajst-30189	59	8	hole	hole	NOUN
ajst-30189	59	9	of	of	ADP
ajst-30189	59	10	the	the	DET
ajst-30189	59	11	body	body	NOUN
ajst-30189	59	12	through	through	ADP
ajst-30189	59	13	the	the	DET
ajst-30189	59	14	nozzle	nozzle	NOUN
ajst-30189	59	15	seat	seat	NOUN
ajst-30189	59	16	and	and	CCONJ
ajst-30189	59	17	sealed	seal	VERB
ajst-30189	59	18	with	with	ADP
ajst-30189	59	19	the	the	DET
ajst-30189	59	20	body	body	NOUN
ajst-30189	59	21	using	use	VERB
ajst-30189	59	22	the	the	DET
ajst-30189	59	23	conical	conical	ADJ
ajst-30189	59	24	surface	surface	NOUN
ajst-30189	59	25	;	;	PUNCT
ajst-30189	59	26	the	the	DET
ajst-30189	59	27	external	external	ADJ
ajst-30189	59	28	design	design	NOUN
ajst-30189	59	29	of	of	ADP
ajst-30189	59	30	the	the	DET
ajst-30189	59	31	spray	spray	NOUN
ajst-30189	59	32	gun	gun	NOUN
ajst-30189	59	33	body	body	NOUN
ajst-30189	59	34	is	be	AUX
ajst-30189	59	35	equipped	equip	VERB
ajst-30189	59	36	with	with	ADP
ajst-30189	59	37	a	a	DET
ajst-30189	59	38	high	high	ADJ
ajst-30189	59	39	-	-	PUNCT
ajst-30189	59	40	quality	quality	NOUN
ajst-30189	59	41	alloy	alloy	NOUN
ajst-30189	59	42	protective	protective	ADJ
ajst-30189	59	43	layer	layer	NOUN
ajst-30189	59	44	,	,	PUNCT
ajst-30189	59	45	which	which	PRON
ajst-30189	59	46	aims	aim	VERB
ajst-30189	59	47	to	to	PART
ajst-30189	59	48	reduce	reduce	VERB
ajst-30189	59	49	the	the	DET
ajst-30189	59	50	erosion	erosion	NOUN
ajst-30189	59	51	effect	effect	NOUN
ajst-30189	59	52	of	of	ADP
ajst-30189	59	53	counterattack	counterattack	NOUN
ajst-30189	59	54	sand	sand	NOUN
ajst-30189	59	55	on	on	ADP
ajst-30189	59	56	the	the	DET
ajst-30189	59	57	spray	spray	NOUN
ajst-30189	59	58	gun	gun	NOUN
ajst-30189	59	59	body	body	NOUN
ajst-30189	59	60	during	during	ADP
ajst-30189	59	61	high	high	ADJ
ajst-30189	59	62	-	-	PUNCT
ajst-30189	59	63	speed	speed	NOUN
ajst-30189	59	64	sand	sand	NOUN
ajst-30189	59	65	carrying	carry	VERB
ajst-30189	59	66	fluid	fluid	ADJ
ajst-30189	59	67	perforation	perforation	NOUN
ajst-30189	59	68	.	.	PUNCT
ajst-30189	60	1	figure	figure	NOUN
ajst-30189	60	2	4	4	NUM
ajst-30189	60	3	.	.	PUNCT
ajst-30189	60	4	schematic	schematic	ADJ
ajst-30189	60	5	diagram	diagram	NOUN
ajst-30189	60	6	of	of	ADP
ajst-30189	60	7	sandblasting	sandblasting	NOUN
ajst-30189	60	8	perforator	perforator	NOUN
ajst-30189	60	9	structure	structure	NOUN
ajst-30189	60	10	1	1	NUM
ajst-30189	60	11	;	;	PUNCT
ajst-30189	60	12	nozzle	nozzle	NOUN
ajst-30189	60	13	seat	seat	NOUN
ajst-30189	60	14	;	;	PUNCT
ajst-30189	61	1	2nozzle	2nozzle	NUM
ajst-30189	61	2	;	;	PUNCT
ajst-30189	61	3	3spray	3spray	NUM
ajst-30189	61	4	gun	gun	NOUN
ajst-30189	61	5	body	body	NOUN
ajst-30189	61	6	5	5	NUM
ajst-30189	61	7	.	.	PUNCT
ajst-30189	61	8	static	static	ADJ
ajst-30189	61	9	analysis	analysis	NOUN
ajst-30189	61	10	of	of	ADP
ajst-30189	61	11	sandblasting	sandblasting	NOUN
ajst-30189	61	12	perforator	perforator	NOUN
ajst-30189	61	13	5.1	5.1	NUM
ajst-30189	61	14	.	.	PUNCT
ajst-30189	61	15	simulation	simulation	NOUN
ajst-30189	61	16	model	model	PROPN
ajst-30189	61	17	establishment	establishment	PROPN
ajst-30189	61	18	the	the	DET
ajst-30189	61	19	hydraulic	hydraulic	NOUN
ajst-30189	61	20	sandblasting	sandblasting	NOUN
ajst-30189	61	21	perforating	perforate	VERB
ajst-30189	61	22	device	device	NOUN
ajst-30189	61	23	designed	design	VERB
ajst-30189	61	24	in	in	ADP
ajst-30189	61	25	this	this	DET
ajst-30189	61	26	article	article	NOUN
ajst-30189	61	27	is	be	AUX
ajst-30189	61	28	mainly	mainly	ADV
ajst-30189	61	29	subjected	subject	VERB
ajst-30189	61	30	to	to	ADP
ajst-30189	61	31	the	the	DET
ajst-30189	61	32	effects	effect	NOUN
ajst-30189	61	33	of	of	ADP
ajst-30189	61	34	high	high	ADJ
ajst-30189	61	35	pressure	pressure	NOUN
ajst-30189	61	36	zone	zone	NOUN
ajst-30189	61	37	,	,	PUNCT
ajst-30189	61	38	low	low	ADJ
ajst-30189	61	39	pressure	pressure	NOUN
ajst-30189	61	40	zone	zone	NOUN
ajst-30189	61	41	,	,	PUNCT
ajst-30189	61	42	and	and	CCONJ
ajst-30189	61	43	annular	annular	ADJ
ajst-30189	61	44	liquid	liquid	ADJ
ajst-30189	61	45	pressure	pressure	NOUN
ajst-30189	61	46	,	,	PUNCT
ajst-30189	61	47	as	as	ADV
ajst-30189	61	48	well	well	ADV
ajst-30189	61	49	as	as	ADP
ajst-30189	61	50	the	the	DET
ajst-30189	61	51	pressure	pressure	NOUN
ajst-30189	61	52	of	of	ADP
ajst-30189	61	53	the	the	DET
ajst-30189	61	54	lower	low	ADJ
ajst-30189	61	55	drilling	drilling	NOUN
ajst-30189	61	56	tool	tool	NOUN
ajst-30189	61	57	during	during	ADP
ajst-30189	61	58	the	the	DET
ajst-30189	61	59	working	working	NOUN
ajst-30189	61	60	process	process	NOUN
ajst-30189	61	61	.	.	PUNCT
ajst-30189	62	1	therefore	therefore	ADV
ajst-30189	62	2	,	,	PUNCT
ajst-30189	62	3	its	its	PRON
ajst-30189	62	4	model	model	NOUN
ajst-30189	62	5	was	be	AUX
ajst-30189	62	6	appropriately	appropriately	ADV
ajst-30189	62	7	simplified	simplify	VERB
ajst-30189	62	8	during	during	ADP
ajst-30189	62	9	static	static	ADJ
ajst-30189	62	10	finite	finite	ADJ
ajst-30189	62	11	element	element	NOUN
ajst-30189	62	12	analysis	analysis	NOUN
ajst-30189	62	13	,	,	PUNCT
ajst-30189	62	14	as	as	SCONJ
ajst-30189	62	15	shown	show	VERB
ajst-30189	62	16	in	in	ADP
ajst-30189	62	17	figure	figure	NOUN
ajst-30189	62	18	5	5	NUM
ajst-30189	62	19	.	.	PUNCT
ajst-30189	62	20	figure	figure	NOUN
ajst-30189	62	21	5	5	NUM
ajst-30189	62	22	.	.	PUNCT
ajst-30189	62	23	finite	finite	PROPN
ajst-30189	62	24	element	element	PROPN
ajst-30189	62	25	model	model	NOUN
ajst-30189	62	26	of	of	ADP
ajst-30189	62	27	hydraulic	hydraulic	NOUN
ajst-30189	62	28	sandblasting	sandblasting	NOUN
ajst-30189	62	29	perforator	perforator	NOUN
ajst-30189	62	30	5.2	5.2	NUM
ajst-30189	62	31	.	.	PUNCT
ajst-30189	63	1	grid	grid	NOUN
ajst-30189	63	2	division	division	NOUN
ajst-30189	63	3	and	and	CCONJ
ajst-30189	63	4	boundary	boundary	ADJ
ajst-30189	63	5	condition	condition	NOUN
ajst-30189	63	6	setting	set	VERB
ajst-30189	63	7	the	the	DET
ajst-30189	63	8	hydraulic	hydraulic	NOUN
ajst-30189	63	9	sandblasting	sandblasting	NOUN
ajst-30189	63	10	perforating	perforate	VERB
ajst-30189	63	11	device	device	NOUN
ajst-30189	63	12	was	be	AUX
ajst-30189	63	13	meshed	mesh	VERB
ajst-30189	63	14	with	with	ADP
ajst-30189	63	15	a	a	DET
ajst-30189	63	16	mesh	mesh	NOUN
ajst-30189	63	17	size	size	NOUN
ajst-30189	63	18	of	of	ADP
ajst-30189	63	19	5	5	NUM
ajst-30189	63	20	mm	mm	NOUN
ajst-30189	63	21	and	and	CCONJ
ajst-30189	63	22	a	a	DET
ajst-30189	63	23	tetrahedral	tetrahedral	ADJ
ajst-30189	63	24	mesh	mesh	NOUN
ajst-30189	63	25	type	type	NOUN
ajst-30189	63	26	.	.	PUNCT
ajst-30189	64	1	the	the	DET
ajst-30189	64	2	number	number	NOUN
ajst-30189	64	3	of	of	ADP
ajst-30189	64	4	mesh	mesh	NOUN
ajst-30189	64	5	nodes	node	NOUN
ajst-30189	64	6	after	after	ADP
ajst-30189	64	7	partitioning	partition	VERB
ajst-30189	64	8	was	be	AUX
ajst-30189	64	9	69959	69959	NUM
ajst-30189	64	10	,	,	PUNCT
ajst-30189	64	11	and	and	CCONJ
ajst-30189	64	12	the	the	DET
ajst-30189	64	13	number	number	NOUN
ajst-30189	64	14	of	of	ADP
ajst-30189	64	15	mesh	mesh	NOUN
ajst-30189	64	16	elements	element	NOUN
ajst-30189	64	17	was	be	AUX
ajst-30189	64	18	40398	40398	NUM
ajst-30189	64	19	.	.	PUNCT
ajst-30189	65	1	the	the	DET
ajst-30189	65	2	mesh	mesh	NOUN
ajst-30189	65	3	partitioning	partitioning	NOUN
ajst-30189	65	4	results	result	NOUN
ajst-30189	65	5	are	be	AUX
ajst-30189	65	6	shown	show	VERB
ajst-30189	65	7	in	in	ADP
ajst-30189	65	8	figure	figure	NOUN
ajst-30189	65	9	6	6	NUM
ajst-30189	65	10	.	.	PUNCT
ajst-30189	65	11	based	base	VERB
ajst-30189	65	12	on	on	ADP
ajst-30189	65	13	the	the	DET
ajst-30189	65	14	actual	actual	ADJ
ajst-30189	65	15	force	force	NOUN
ajst-30189	65	16	situation	situation	NOUN
ajst-30189	65	17	during	during	ADP
ajst-30189	65	18	the	the	DET
ajst-30189	65	19	operation	operation	NOUN
ajst-30189	65	20	of	of	ADP
ajst-30189	65	21	the	the	DET
ajst-30189	65	22	perforating	perforate	VERB
ajst-30189	65	23	device	device	NOUN
ajst-30189	65	24	,	,	PUNCT
ajst-30189	65	25	a	a	DET
ajst-30189	65	26	fixed	fix	VERB
ajst-30189	65	27	constraint	constraint	NOUN
ajst-30189	65	28	is	be	AUX
ajst-30189	65	29	added	add	VERB
ajst-30189	65	30	on	on	ADP
ajst-30189	65	31	both	both	CCONJ
ajst-30189	65	32	the	the	DET
ajst-30189	65	33	upper	upper	ADJ
ajst-30189	65	34	and	and	CCONJ
ajst-30189	65	35	lower	low	ADJ
ajst-30189	65	36	ends	end	NOUN
ajst-30189	65	37	of	of	ADP
ajst-30189	65	38	the	the	DET
ajst-30189	65	39	perforating	perforate	VERB
ajst-30189	65	40	device	device	NOUN
ajst-30189	65	41	,	,	PUNCT
ajst-30189	65	42	and	and	CCONJ
ajst-30189	65	43	a	a	DET
ajst-30189	65	44	normal	normal	ADJ
ajst-30189	65	45	pressure	pressure	NOUN
ajst-30189	65	46	of	of	ADP
ajst-30189	65	47	30mpa	30mpa	NOUN
ajst-30189	65	48	is	be	AUX
ajst-30189	65	49	applied	apply	VERB
ajst-30189	65	50	on	on	ADP
ajst-30189	65	51	the	the	DET
ajst-30189	65	52	outer	outer	ADJ
ajst-30189	65	53	cylindrical	cylindrical	ADJ
ajst-30189	65	54	surface	surface	NOUN
ajst-30189	65	55	.	.	PUNCT
ajst-30189	66	1	the	the	DET
ajst-30189	66	2	boundary	boundary	ADJ
ajst-30189	66	3	conditions	condition	NOUN
ajst-30189	66	4	and	and	CCONJ
ajst-30189	66	5	loading	loading	NOUN
ajst-30189	66	6	conditions	condition	NOUN
ajst-30189	66	7	of	of	ADP
ajst-30189	66	8	finite	finite	ADJ
ajst-30189	66	9	element	element	NOUN
ajst-30189	66	10	analysis	analysis	NOUN
ajst-30189	66	11	are	be	AUX
ajst-30189	66	12	shown	show	VERB
ajst-30189	66	13	in	in	ADP
ajst-30189	66	14	figures	figure	NOUN
ajst-30189	66	15	4	4	NUM
ajst-30189	66	16	-	-	SYM
ajst-30189	66	17	7	7	NUM
ajst-30189	66	18	(	(	PUNCT
ajst-30189	66	19	a	a	NOUN
ajst-30189	66	20	)	)	PUNCT
ajst-30189	66	21	and	and	CCONJ
ajst-30189	66	22	(	(	PUNCT
ajst-30189	66	23	b	b	NOUN
ajst-30189	66	24	):	):	PUNCT
ajst-30189	66	25	figure	figure	NOUN
ajst-30189	66	26	6	6	NUM
ajst-30189	66	27	.	.	PUNCT
ajst-30189	66	28	grid	grid	NOUN
ajst-30189	66	29	division	division	NOUN
ajst-30189	66	30	results	result	NOUN
ajst-30189	66	31	(	(	PUNCT
ajst-30189	66	32	a)apply	a)apply	ADP
ajst-30189	66	33	fixed	fix	VERB
ajst-30189	66	34	constraints	constraint	NOUN
ajst-30189	66	35	(	(	PUNCT
ajst-30189	66	36	b	b	NOUN
ajst-30189	66	37	)	)	PUNCT
ajst-30189	66	38	apply	apply	VERB
ajst-30189	66	39	external	external	ADJ
ajst-30189	66	40	pressure	pressure	NOUN
ajst-30189	66	41	figure	figure	NOUN
ajst-30189	66	42	7	7	NUM
ajst-30189	66	43	.	.	PUNCT
ajst-30189	66	44	application	application	NOUN
ajst-30189	66	45	of	of	ADP
ajst-30189	66	46	boundaries	boundary	NOUN
ajst-30189	66	47	and	and	CCONJ
ajst-30189	66	48	loads	load	VERB
ajst-30189	66	49	5.3	5.3	NUM
ajst-30189	66	50	.	.	PUNCT
ajst-30189	67	1	simulation	simulation	NOUN
ajst-30189	67	2	result	result	NOUN
ajst-30189	67	3	according	accord	VERB
ajst-30189	67	4	to	to	PART
ajst-30189	67	5	figure	figure	VERB
ajst-30189	67	6	8	8	NUM
ajst-30189	67	7	,	,	PUNCT
ajst-30189	67	8	the	the	DET
ajst-30189	67	9	maximum	maximum	ADJ
ajst-30189	67	10	deformation	deformation	NOUN
ajst-30189	67	11	value	value	NOUN
ajst-30189	67	12	of	of	ADP
ajst-30189	67	13	the	the	DET
ajst-30189	67	14	perforator	perforator	NOUN
ajst-30189	67	15	in	in	ADP
ajst-30189	67	16	actual	actual	ADJ
ajst-30189	67	17	working	working	NOUN
ajst-30189	67	18	conditions	condition	NOUN
ajst-30189	67	19	is	be	AUX
ajst-30189	67	20	relatively	relatively	ADV
ajst-30189	67	21	small	small	ADJ
ajst-30189	67	22	,	,	PUNCT
ajst-30189	67	23	at	at	ADP
ajst-30189	67	24	0.015602	0.015602	NUM
ajst-30189	67	25	mm	mm	NOUN
ajst-30189	67	26	;	;	PUNCT
ajst-30189	67	27	the	the	DET
ajst-30189	67	28	maximum	maximum	ADJ
ajst-30189	67	29	stress	stress	NOUN
ajst-30189	67	30	experienced	experience	VERB
ajst-30189	67	31	by	by	ADP
ajst-30189	67	32	the	the	DET
ajst-30189	67	33	perforating	perforate	VERB
ajst-30189	67	34	device	device	NOUN
ajst-30189	67	35	as	as	ADP
ajst-30189	67	36	a	a	DET
ajst-30189	67	37	whole	whole	NOUN
ajst-30189	67	38	is	be	AUX
ajst-30189	67	39	235.31mpa	235.31mpa	PROPN
ajst-30189	67	40	,	,	PUNCT
ajst-30189	67	41	and	and	CCONJ
ajst-30189	67	42	the	the	DET
ajst-30189	67	43	maximum	maximum	ADJ
ajst-30189	67	44	strain	strain	NOUN
ajst-30189	67	45	is	be	AUX
ajst-30189	67	46	0.001819	0.001819	NUM
ajst-30189	67	47	.	.	PUNCT
ajst-30189	68	1	the	the	DET
ajst-30189	68	2	yield	yield	NOUN
ajst-30189	68	3	stress	stress	NOUN
ajst-30189	68	4	of	of	ADP
ajst-30189	68	5	42crmo	42crmo	PROPN
ajst-30189	68	6	material	material	NOUN
ajst-30189	68	7	is	be	AUX
ajst-30189	68	8	930mpa	930mpa	NUM
ajst-30189	68	9	,	,	PUNCT
ajst-30189	68	10	and	and	CCONJ
ajst-30189	68	11	assuming	assume	VERB
ajst-30189	68	12	the	the	DET
ajst-30189	68	13	safety	safety	NOUN
ajst-30189	68	14	factor	factor	NOUN
ajst-30189	68	15	of	of	ADP
ajst-30189	68	16	the	the	DET
ajst-30189	68	17	hydraulic	hydraulic	NOUN
ajst-30189	68	18	sandblasting	sandblasting	NOUN
ajst-30189	68	19	perforator	perforator	NOUN
ajst-30189	68	20	is	be	AUX
ajst-30189	68	21	1.3	1.3	NUM
ajst-30189	68	22	,	,	PUNCT
ajst-30189	68	23	the	the	DET
ajst-30189	68	24	allowable	allowable	ADJ
ajst-30189	68	25	stress	stress	NOUN
ajst-30189	68	26	of	of	ADP
ajst-30189	68	27	the	the	DET
ajst-30189	68	28	material	material	NOUN
ajst-30189	68	29	is	be	AUX
ajst-30189	68	30	715mpa	715mpa	NUM
ajst-30189	68	31	.	.	PUNCT
ajst-30189	69	1	after	after	ADP
ajst-30189	69	2	finite	finite	ADJ
ajst-30189	69	3	element	element	NOUN
ajst-30189	69	4	analysis	analysis	NOUN
ajst-30189	69	5	,	,	PUNCT
ajst-30189	69	6	the	the	DET
ajst-30189	69	7	maximum	maximum	ADJ
ajst-30189	69	8	stress	stress	NOUN
ajst-30189	69	9	experienced	experience	VERB
ajst-30189	69	10	by	by	ADP
ajst-30189	69	11	the	the	DET
ajst-30189	69	12	perforating	perforate	VERB
ajst-30189	69	13	device	device	NOUN
ajst-30189	69	14	as	as	ADP
ajst-30189	69	15	a	a	DET
ajst-30189	69	16	whole	whole	NOUN
ajst-30189	69	17	is	be	AUX
ajst-30189	69	18	235.31mpa	235.31mpa	PROPN
ajst-30189	69	19	,	,	PUNCT
ajst-30189	69	20	which	which	PRON
ajst-30189	69	21	is	be	AUX
ajst-30189	69	22	less	less	ADJ
ajst-30189	69	23	than	than	ADP
ajst-30189	69	24	the	the	DET
ajst-30189	69	25	maximum	maximum	ADJ
ajst-30189	69	26	allowable	allowable	ADJ
ajst-30189	69	27	stress	stress	NOUN
ajst-30189	69	28	max	max	PROPN
ajst-30189	69	29	of	of	ADP
ajst-30189	69	30	the	the	DET
ajst-30189	69	31	material	material	NOUN
ajst-30189	69	32	.	.	PUNCT
ajst-30189	70	1	therefore	therefore	ADV
ajst-30189	70	2	,	,	PUNCT
ajst-30189	70	3	the	the	DET
ajst-30189	70	4	strength	strength	NOUN
ajst-30189	70	5	of	of	ADP
ajst-30189	70	6	the	the	DET
ajst-30189	70	7	perforating	perforate	VERB
ajst-30189	70	8	device	device	NOUN
ajst-30189	70	9	can	can	AUX
ajst-30189	70	10	meet	meet	VERB
ajst-30189	70	11	the	the	DET
ajst-30189	70	12	requirements	requirement	NOUN
ajst-30189	70	13	.	.	PUNCT
ajst-30189	71	1	according	accord	VERB
ajst-30189	71	2	to	to	ADP
ajst-30189	71	3	the	the	DET
ajst-30189	71	4	strength	strength	NOUN
ajst-30189	71	5	verification	verification	NOUN
ajst-30189	71	6	theory	theory	NOUN
ajst-30189	71	7	of	of	ADP
ajst-30189	71	8	the	the	DET
ajst-30189	71	9	hydraulic	hydraulic	ADJ
ajst-30189	71	10	perforator	perforator	NOUN
ajst-30189	71	11	mentioned	mention	VERB
ajst-30189	71	12	above	above	ADV
ajst-30189	71	13	,	,	PUNCT
ajst-30189	71	14	the	the	DET
ajst-30189	71	15	allowable	allowable	ADJ
ajst-30189	71	16	stress	stress	NOUN
ajst-30189	71	17	of	of	ADP
ajst-30189	71	18	the	the	DET
ajst-30189	71	19	hydraulic	hydraulic	ADJ
ajst-30189	71	20	perforator	perforator	NOUN
ajst-30189	71	21	is	be	AUX
ajst-30189	71	22	715mpa	715mpa	NUM
ajst-30189	71	23	,	,	PUNCT
ajst-30189	71	24	so	so	ADV
ajst-30189	71	25	its	its	PRON
ajst-30189	71	26	strength	strength	NOUN
ajst-30189	71	27	is	be	AUX
ajst-30189	71	28	within	within	ADP
ajst-30189	71	29	the	the	DET
ajst-30189	71	30	safe	safe	ADJ
ajst-30189	71	31	range	range	NOUN
ajst-30189	71	32	when	when	SCONJ
ajst-30189	71	33	in	in	ADP
ajst-30189	71	34	use	use	NOUN
ajst-30189	71	35	.	.	PUNCT
ajst-30189	72	1	139	139	NUM
ajst-30189	72	2	(	(	PUNCT
ajst-30189	72	3	a	a	NOUN
ajst-30189	72	4	)	)	PUNCT
ajst-30189	72	5	total	total	ADJ
ajst-30189	72	6	deformation	deformation	NOUN
ajst-30189	72	7	(	(	PUNCT
ajst-30189	72	8	b	b	NOUN
ajst-30189	72	9	)	)	PUNCT
ajst-30189	72	10	equivalent	equivalent	ADJ
ajst-30189	72	11	strain	strain	NOUN
ajst-30189	72	12	(	(	PUNCT
ajst-30189	72	13	c	c	NOUN
ajst-30189	72	14	)	)	PUNCT
ajst-30189	72	15	equivalent	equivalent	ADJ
ajst-30189	72	16	stress	stress	NOUN
ajst-30189	72	17	figure	figure	NOUN
ajst-30189	72	18	8	8	NUM
ajst-30189	72	19	.	.	PUNCT
ajst-30189	73	1	static	static	ADJ
ajst-30189	73	2	analysis	analysis	NOUN
ajst-30189	73	3	of	of	ADP
ajst-30189	73	4	perforating	perforate	VERB
ajst-30189	73	5	device	device	NOUN
ajst-30189	73	6	6	6	NUM
ajst-30189	73	7	.	.	PUNCT
ajst-30189	73	8	modal	modal	ADJ
ajst-30189	73	9	characteristics	characteristic	NOUN
ajst-30189	73	10	analysis	analysis	NOUN
ajst-30189	73	11	of	of	ADP
ajst-30189	73	12	sandblasting	sandblast	VERB
ajst-30189	73	13	perforators	perforator	NOUN
ajst-30189	73	14	in	in	ADP
ajst-30189	73	15	engineering	engineering	NOUN
ajst-30189	73	16	applications	application	NOUN
ajst-30189	73	17	,	,	PUNCT
ajst-30189	73	18	modal	modal	ADJ
ajst-30189	73	19	analysis	analysis	NOUN
ajst-30189	73	20	is	be	AUX
ajst-30189	73	21	widely	widely	ADV
ajst-30189	73	22	used	use	VERB
ajst-30189	73	23	to	to	PART
ajst-30189	73	24	identify	identify	VERB
ajst-30189	73	25	the	the	DET
ajst-30189	73	26	natural	natural	ADJ
ajst-30189	73	27	frequencies	frequency	NOUN
ajst-30189	73	28	and	and	CCONJ
ajst-30189	73	29	vibration	vibration	NOUN
ajst-30189	73	30	characteristics	characteristic	NOUN
ajst-30189	73	31	of	of	ADP
ajst-30189	73	32	components	component	NOUN
ajst-30189	73	33	,	,	PUNCT
ajst-30189	73	34	which	which	PRON
ajst-30189	73	35	are	be	AUX
ajst-30189	73	36	collectively	collectively	ADV
ajst-30189	73	37	referred	refer	VERB
ajst-30189	73	38	to	to	ADP
ajst-30189	73	39	as	as	ADP
ajst-30189	73	40	modes	mode	NOUN
ajst-30189	73	41	.	.	PUNCT
ajst-30189	74	1	to	to	PART
ajst-30189	74	2	ensure	ensure	VERB
ajst-30189	74	3	the	the	DET
ajst-30189	74	4	safety	safety	NOUN
ajst-30189	74	5	and	and	CCONJ
ajst-30189	74	6	reliability	reliability	NOUN
ajst-30189	74	7	of	of	ADP
ajst-30189	74	8	the	the	DET
ajst-30189	74	9	structure	structure	NOUN
ajst-30189	74	10	,	,	PUNCT
ajst-30189	74	11	the	the	DET
ajst-30189	74	12	natural	natural	ADJ
ajst-30189	74	13	modal	modal	ADJ
ajst-30189	74	14	frequency	frequency	NOUN
ajst-30189	74	15	of	of	ADP
ajst-30189	74	16	the	the	DET
ajst-30189	74	17	component	component	NOUN
ajst-30189	74	18	is	be	AUX
ajst-30189	74	19	usually	usually	ADV
ajst-30189	74	20	compared	compare	VERB
ajst-30189	74	21	and	and	CCONJ
ajst-30189	74	22	analyzed	analyze	VERB
ajst-30189	74	23	with	with	ADP
ajst-30189	74	24	its	its	PRON
ajst-30189	74	25	operating	operating	NOUN
ajst-30189	74	26	frequency	frequency	NOUN
ajst-30189	74	27	to	to	PART
ajst-30189	74	28	avoid	avoid	VERB
ajst-30189	74	29	resonance	resonance	NOUN
ajst-30189	74	30	phenomena	phenomenon	NOUN
ajst-30189	74	31	.	.	PUNCT
ajst-30189	75	1	when	when	SCONJ
ajst-30189	75	2	conducting	conduct	VERB
ajst-30189	75	3	modal	modal	ADJ
ajst-30189	75	4	analysis	analysis	NOUN
ajst-30189	75	5	of	of	ADP
ajst-30189	75	6	perforating	perforate	VERB
ajst-30189	75	7	equipment	equipment	NOUN
ajst-30189	75	8	,	,	PUNCT
ajst-30189	75	9	it	it	PRON
ajst-30189	75	10	is	be	AUX
ajst-30189	75	11	necessary	necessary	ADJ
ajst-30189	75	12	to	to	PART
ajst-30189	75	13	define	define	VERB
ajst-30189	75	14	the	the	DET
ajst-30189	75	15	material	material	NOUN
ajst-30189	75	16	performance	performance	NOUN
ajst-30189	75	17	parameters	parameter	NOUN
ajst-30189	75	18	.	.	PUNCT
ajst-30189	76	1	in	in	ADP
ajst-30189	76	2	this	this	DET
ajst-30189	76	3	paper	paper	NOUN
ajst-30189	76	4	,	,	PUNCT
ajst-30189	76	5	42crmo	42crmo	PROPN
ajst-30189	76	6	material	material	NOUN
ajst-30189	76	7	is	be	AUX
ajst-30189	76	8	selected	select	VERB
ajst-30189	76	9	,	,	PUNCT
ajst-30189	76	10	with	with	ADP
ajst-30189	76	11	an	an	DET
ajst-30189	76	12	elastic	elastic	ADJ
ajst-30189	76	13	modulus	modulus	NOUN
ajst-30189	76	14	e	e	NOUN
ajst-30189	76	15	of	of	ADP
ajst-30189	76	16	2.10	2.10	NUM
ajst-30189	76	17	×	×	NOUN
ajst-30189	76	18	1011pa	1011pa	NOUN
ajst-30189	76	19	,	,	PUNCT
ajst-30189	76	20	poisson	poisson	PROPN
ajst-30189	76	21	's	's	PART
ajst-30189	76	22	ratio	ratio	NOUN
ajst-30189	76	23	μ=0.28	μ=0.28	NOUN
ajst-30189	76	24	,	,	PUNCT
ajst-30189	76	25	and	and	CCONJ
ajst-30189	76	26	a	a	DET
ajst-30189	76	27	density	density	NOUN
ajst-30189	76	28	p	p	NOUN
ajst-30189	76	29	of	of	ADP
ajst-30189	76	30	7850kg	7850kg	PROPN
ajst-30189	76	31	/	/	SYM
ajst-30189	76	32	m3	m3	PROPN
ajst-30189	76	33	.	.	PUNCT
ajst-30189	77	1	table	table	NOUN
ajst-30189	77	2	2	2	NUM
ajst-30189	77	3	.	.	PUNCT
ajst-30189	77	4	frequency	frequency	NOUN
ajst-30189	77	5	table	table	NOUN
ajst-30189	77	6	of	of	ADP
ajst-30189	77	7	the	the	DET
ajst-30189	77	8	first	first	ADJ
ajst-30189	77	9	six	six	NUM
ajst-30189	77	10	constrained	constrained	ADJ
ajst-30189	77	11	modes	mode	NOUN
ajst-30189	77	12	of	of	ADP
ajst-30189	77	13	hydraulic	hydraulic	ADJ
ajst-30189	77	14	injectors	injector	NOUN
ajst-30189	77	15	first	first	ADV
ajst-30189	77	16	mode	mode	NOUN
ajst-30189	77	17	1794.5	1794.5	NUM
ajst-30189	77	18	second	second	ADJ
ajst-30189	77	19	-	-	PUNCT
ajst-30189	77	20	order	order	NOUN
ajst-30189	77	21	mode	mode	NOUN
ajst-30189	77	22	1794.6	1794.6	NUM
ajst-30189	77	23	third	third	ADJ
ajst-30189	77	24	order	order	NOUN
ajst-30189	77	25	mode	mode	VERB
ajst-30189	77	26	3100.7	3100.7	NUM
ajst-30189	77	27	fourth	fourth	ADJ
ajst-30189	77	28	-	-	PUNCT
ajst-30189	77	29	order	order	NOUN
ajst-30189	77	30	mode	mode	NOUN
ajst-30189	77	31	4065.9	4065.9	NUM
ajst-30189	77	32	fifth	fifth	ADJ
ajst-30189	77	33	order	order	NOUN
ajst-30189	77	34	mode	mode	NOUN
ajst-30189	77	35	4066.0	4066.0	NUM
ajst-30189	77	36	sixth	sixth	ADJ
ajst-30189	77	37	order	order	NOUN
ajst-30189	77	38	mode	mode	NOUN
ajst-30189	77	39	5444.5	5444.5	NUM
ajst-30189	77	40	(	(	PUNCT
ajst-30189	77	41	a	a	NOUN
ajst-30189	77	42	)	)	PUNCT
ajst-30189	77	43	first	first	ADJ
ajst-30189	77	44	mode	mode	NOUN
ajst-30189	77	45	(	(	PUNCT
ajst-30189	77	46	b	b	NOUN
ajst-30189	77	47	)	)	PUNCT
ajst-30189	77	48	second	second	ADJ
ajst-30189	77	49	-	-	PUNCT
ajst-30189	77	50	order	order	NOUN
ajst-30189	77	51	mode	mode	NOUN
ajst-30189	77	52	(	(	PUNCT
ajst-30189	77	53	c	c	NOUN
ajst-30189	77	54	)	)	PUNCT
ajst-30189	77	55	third	third	ADJ
ajst-30189	77	56	order	order	NOUN
ajst-30189	77	57	mode	mode	NOUN
ajst-30189	77	58	(	(	PUNCT
ajst-30189	77	59	d	d	NOUN
ajst-30189	77	60	)	)	PUNCT
ajst-30189	77	61	fourth	fourth	ADJ
ajst-30189	77	62	-	-	PUNCT
ajst-30189	77	63	order	order	NOUN
ajst-30189	77	64	mode	mode	NOUN
ajst-30189	77	65	(	(	PUNCT
ajst-30189	77	66	e	e	NOUN
ajst-30189	77	67	)	)	PUNCT
ajst-30189	77	68	fifth	fifth	ADJ
ajst-30189	77	69	order	order	NOUN
ajst-30189	77	70	mode	mode	NOUN
ajst-30189	77	71	(	(	PUNCT
ajst-30189	77	72	f	f	X
ajst-30189	77	73	)	)	PUNCT
ajst-30189	77	74	sixth	sixth	ADJ
ajst-30189	77	75	order	order	NOUN
ajst-30189	77	76	mode	mode	NOUN
ajst-30189	77	77	figure	figure	NOUN
ajst-30189	77	78	9	9	NUM
ajst-30189	77	79	.	.	PUNCT
ajst-30189	78	1	analysis	analysis	NOUN
ajst-30189	78	2	cloud	cloud	NOUN
ajst-30189	78	3	map	map	NOUN
ajst-30189	78	4	of	of	ADP
ajst-30189	78	5	different	different	ADJ
ajst-30189	78	6	modes	mode	NOUN
ajst-30189	78	7	of	of	ADP
ajst-30189	78	8	hydraulic	hydraulic	ADJ
ajst-30189	78	9	sandblaster	sandblaster	NOUN
ajst-30189	78	10	figure	figure	NOUN
ajst-30189	78	11	9	9	NUM
ajst-30189	78	12	shows	show	VERB
ajst-30189	78	13	the	the	DET
ajst-30189	78	14	calculated	calculated	ADJ
ajst-30189	78	15	deformation	deformation	NOUN
ajst-30189	78	16	cloud	cloud	NOUN
ajst-30189	78	17	map	map	NOUN
ajst-30189	78	18	of	of	ADP
ajst-30189	78	19	the	the	DET
ajst-30189	78	20	first	first	ADJ
ajst-30189	78	21	six	six	NUM
ajst-30189	78	22	modes	mode	NOUN
ajst-30189	78	23	of	of	ADP
ajst-30189	78	24	the	the	DET
ajst-30189	78	25	hydraulic	hydraulic	ADJ
ajst-30189	78	26	injector	injector	NOUN
ajst-30189	78	27	under	under	ADP
ajst-30189	78	28	constrained	constrained	ADJ
ajst-30189	78	29	conditions	condition	NOUN
ajst-30189	78	30	.	.	PUNCT
ajst-30189	79	1	from	from	ADP
ajst-30189	79	2	the	the	DET
ajst-30189	79	3	results	result	NOUN
ajst-30189	79	4	,	,	PUNCT
ajst-30189	79	5	it	it	PRON
ajst-30189	79	6	can	can	AUX
ajst-30189	79	7	be	be	AUX
ajst-30189	79	8	seen	see	VERB
ajst-30189	79	9	that	that	SCONJ
ajst-30189	79	10	the	the	DET
ajst-30189	79	11	natural	natural	ADJ
ajst-30189	79	12	frequencies	frequency	NOUN
ajst-30189	79	13	of	of	ADP
ajst-30189	79	14	each	each	DET
ajst-30189	79	15	order	order	NOUN
ajst-30189	79	16	of	of	ADP
ajst-30189	79	17	the	the	DET
ajst-30189	79	18	hydraulic	hydraulic	ADJ
ajst-30189	79	19	injector	injector	NOUN
ajst-30189	79	20	are	be	AUX
ajst-30189	79	21	all	all	ADV
ajst-30189	79	22	above	above	ADP
ajst-30189	79	23	3377hz	3377hz	PROPN
ajst-30189	79	24	.	.	PUNCT
ajst-30189	80	1	considering	consider	VERB
ajst-30189	80	2	that	that	SCONJ
ajst-30189	80	3	the	the	DET
ajst-30189	80	4	normal	normal	ADJ
ajst-30189	80	5	operating	operating	NOUN
ajst-30189	80	6	frequency	frequency	NOUN
ajst-30189	80	7	of	of	ADP
ajst-30189	80	8	the	the	DET
ajst-30189	80	9	hydraulic	hydraulic	ADJ
ajst-30189	80	10	injector	injector	NOUN
ajst-30189	80	11	is	be	AUX
ajst-30189	80	12	about	about	ADP
ajst-30189	80	13	100hz	100hz	ADJ
ajst-30189	80	14	,	,	PUNCT
ajst-30189	80	15	much	much	ADV
ajst-30189	80	16	lower	low	ADJ
ajst-30189	80	17	than	than	ADP
ajst-30189	80	18	these	these	DET
ajst-30189	80	19	natural	natural	ADJ
ajst-30189	80	20	frequencies	frequency	NOUN
ajst-30189	80	21	,	,	PUNCT
ajst-30189	80	22	the	the	DET
ajst-30189	80	23	hydraulic	hydraulic	ADJ
ajst-30189	80	24	injector	injector	NOUN
ajst-30189	80	25	designed	design	VERB
ajst-30189	80	26	in	in	ADP
ajst-30189	80	27	this	this	DET
ajst-30189	80	28	article	article	NOUN
ajst-30189	80	29	will	will	AUX
ajst-30189	80	30	not	not	PART
ajst-30189	80	31	cause	cause	VERB
ajst-30189	80	32	resonance	resonance	NOUN
ajst-30189	80	33	phenomena	phenomenon	NOUN
ajst-30189	80	34	during	during	ADP
ajst-30189	80	35	operation	operation	NOUN
ajst-30189	80	36	,	,	PUNCT
ajst-30189	80	37	which	which	PRON
ajst-30189	80	38	will	will	AUX
ajst-30189	80	39	effectively	effectively	ADV
ajst-30189	80	40	extend	extend	VERB
ajst-30189	80	41	the	the	DET
ajst-30189	80	42	service	service	NOUN
ajst-30189	80	43	life	life	NOUN
ajst-30189	80	44	of	of	ADP
ajst-30189	80	45	the	the	DET
ajst-30189	80	46	tool	tool	NOUN
ajst-30189	80	47	and	and	CCONJ
ajst-30189	80	48	reduce	reduce	VERB
ajst-30189	80	49	the	the	DET
ajst-30189	80	50	risk	risk	NOUN
ajst-30189	80	51	of	of	ADP
ajst-30189	80	52	underground	underground	ADJ
ajst-30189	80	53	accidents	accident	NOUN
ajst-30189	80	54	.	.	PUNCT
ajst-30189	81	1	7	7	X
ajst-30189	81	2	.	.	X
ajst-30189	81	3	conclusion	conclusion	NOUN
ajst-30189	81	4	this	this	DET
ajst-30189	81	5	article	article	NOUN
ajst-30189	81	6	proposes	propose	VERB
ajst-30189	81	7	a	a	DET
ajst-30189	81	8	new	new	ADJ
ajst-30189	81	9	type	type	NOUN
ajst-30189	81	10	of	of	ADP
ajst-30189	81	11	hydraulic	hydraulic	NOUN
ajst-30189	81	12	sandblasting	sandblasting	NOUN
ajst-30189	81	13	perforation	perforation	NOUN
ajst-30189	81	14	device	device	NOUN
ajst-30189	81	15	to	to	PART
ajst-30189	81	16	address	address	VERB
ajst-30189	81	17	the	the	DET
ajst-30189	81	18	challenges	challenge	NOUN
ajst-30189	81	19	of	of	ADP
ajst-30189	81	20	extracting	extract	VERB
ajst-30189	81	21	lowpermeability	lowpermeability	NOUN
ajst-30189	81	22	coalbed	coalbe	VERB
ajst-30189	81	23	methane	methane	NOUN
ajst-30189	81	24	reservoirs	reservoir	NOUN
ajst-30189	81	25	in	in	ADP
ajst-30189	81	26	china	china	PROPN
ajst-30189	81	27	.	.	PUNCT
ajst-30189	82	1	this	this	DET
ajst-30189	82	2	device	device	NOUN
ajst-30189	82	3	integrates	integrate	VERB
ajst-30189	82	4	hydraulic	hydraulic	ADJ
ajst-30189	82	5	sandblasting	sandblasting	NOUN
ajst-30189	82	6	and	and	CCONJ
ajst-30189	82	7	perforation	perforation	NOUN
ajst-30189	82	8	technology	technology	NOUN
ajst-30189	82	9	,	,	PUNCT
ajst-30189	82	10	adopts	adopt	VERB
ajst-30189	82	11	a	a	DET
ajst-30189	82	12	modular	modular	ADJ
ajst-30189	82	13	structure	structure	NOUN
ajst-30189	82	14	design	design	NOUN
ajst-30189	82	15	,	,	PUNCT
ajst-30189	82	16	and	and	CCONJ
ajst-30189	82	17	the	the	DET
ajst-30189	82	18	various	various	ADJ
ajst-30189	82	19	mechanisms	mechanism	NOUN
ajst-30189	82	20	work	work	VERB
ajst-30189	82	21	together	together	ADV
ajst-30189	82	22	to	to	PART
ajst-30189	82	23	achieve	achieve	VERB
ajst-30189	82	24	precise	precise	ADJ
ajst-30189	82	25	140	140	NUM
ajst-30189	82	26	positioning	positioning	NOUN
ajst-30189	82	27	,	,	PUNCT
ajst-30189	82	28	fixation	fixation	NOUN
ajst-30189	82	29	,	,	PUNCT
ajst-30189	82	30	and	and	CCONJ
ajst-30189	82	31	efficient	efficient	ADJ
ajst-30189	82	32	perforation	perforation	NOUN
ajst-30189	82	33	operations	operation	NOUN
ajst-30189	82	34	of	of	ADP
ajst-30189	82	35	the	the	DET
ajst-30189	82	36	device	device	NOUN
ajst-30189	82	37	in	in	ADP
ajst-30189	82	38	coal	coal	NOUN
ajst-30189	82	39	seams	seam	NOUN
ajst-30189	82	40	.	.	PUNCT
ajst-30189	83	1	by	by	ADP
ajst-30189	83	2	determining	determine	VERB
ajst-30189	83	3	reasonable	reasonable	ADJ
ajst-30189	83	4	design	design	NOUN
ajst-30189	83	5	parameters	parameter	NOUN
ajst-30189	83	6	,	,	PUNCT
ajst-30189	83	7	the	the	DET
ajst-30189	83	8	applicability	applicability	NOUN
ajst-30189	83	9	of	of	ADP
ajst-30189	83	10	the	the	DET
ajst-30189	83	11	device	device	NOUN
ajst-30189	83	12	is	be	AUX
ajst-30189	83	13	ensured	ensure	VERB
ajst-30189	83	14	.	.	PUNCT
ajst-30189	84	1	the	the	DET
ajst-30189	84	2	fixed	fix	VERB
ajst-30189	84	3	system	system	NOUN
ajst-30189	84	4	utilizes	utilize	VERB
ajst-30189	84	5	threaded	thread	VERB
ajst-30189	84	6	transmission	transmission	NOUN
ajst-30189	84	7	and	and	CCONJ
ajst-30189	84	8	special	special	ADJ
ajst-30189	84	9	structures	structure	NOUN
ajst-30189	84	10	to	to	PART
ajst-30189	84	11	achieve	achieve	VERB
ajst-30189	84	12	stable	stable	ADJ
ajst-30189	84	13	fixation	fixation	NOUN
ajst-30189	84	14	;	;	PUNCT
ajst-30189	84	15	the	the	DET
ajst-30189	84	16	structural	structural	ADJ
ajst-30189	84	17	design	design	NOUN
ajst-30189	84	18	of	of	ADP
ajst-30189	84	19	the	the	DET
ajst-30189	84	20	sandblasting	sandblasting	NOUN
ajst-30189	84	21	perforator	perforator	NOUN
ajst-30189	84	22	in	in	ADP
ajst-30189	84	23	the	the	DET
ajst-30189	84	24	perforation	perforation	NOUN
ajst-30189	84	25	system	system	NOUN
ajst-30189	84	26	is	be	AUX
ajst-30189	84	27	reasonable	reasonable	ADJ
ajst-30189	84	28	,	,	PUNCT
ajst-30189	84	29	effectively	effectively	ADV
ajst-30189	84	30	reducing	reduce	VERB
ajst-30189	84	31	the	the	DET
ajst-30189	84	32	impact	impact	NOUN
ajst-30189	84	33	of	of	ADP
ajst-30189	84	34	erosion	erosion	NOUN
ajst-30189	84	35	.	.	PUNCT
ajst-30189	85	1	the	the	DET
ajst-30189	85	2	static	static	ADJ
ajst-30189	85	3	analysis	analysis	NOUN
ajst-30189	85	4	results	result	NOUN
ajst-30189	85	5	indicate	indicate	VERB
ajst-30189	85	6	that	that	SCONJ
ajst-30189	85	7	the	the	DET
ajst-30189	85	8	strength	strength	NOUN
ajst-30189	85	9	of	of	ADP
ajst-30189	85	10	the	the	DET
ajst-30189	85	11	perforating	perforate	VERB
ajst-30189	85	12	device	device	NOUN
ajst-30189	85	13	meets	meet	VERB
ajst-30189	85	14	the	the	DET
ajst-30189	85	15	standard	standard	NOUN
ajst-30189	85	16	,	,	PUNCT
ajst-30189	85	17	and	and	CCONJ
ajst-30189	85	18	the	the	DET
ajst-30189	85	19	modal	modal	ADJ
ajst-30189	85	20	characteristic	characteristic	ADJ
ajst-30189	85	21	analysis	analysis	NOUN
ajst-30189	85	22	shows	show	VERB
ajst-30189	85	23	that	that	SCONJ
ajst-30189	85	24	it	it	PRON
ajst-30189	85	25	will	will	AUX
ajst-30189	85	26	not	not	PART
ajst-30189	85	27	resonate	resonate	VERB
ajst-30189	85	28	during	during	ADP
ajst-30189	85	29	operation	operation	NOUN
ajst-30189	85	30	,	,	PUNCT
ajst-30189	85	31	ensuring	ensure	VERB
ajst-30189	85	32	the	the	DET
ajst-30189	85	33	safety	safety	NOUN
ajst-30189	85	34	and	and	CCONJ
ajst-30189	85	35	reliability	reliability	NOUN
ajst-30189	85	36	of	of	ADP
ajst-30189	85	37	the	the	DET
ajst-30189	85	38	device	device	NOUN
ajst-30189	85	39	.	.	PUNCT
ajst-30189	86	1	the	the	DET
ajst-30189	86	2	design	design	NOUN
ajst-30189	86	3	of	of	ADP
ajst-30189	86	4	this	this	DET
ajst-30189	86	5	device	device	NOUN
ajst-30189	86	6	provides	provide	VERB
ajst-30189	86	7	a	a	DET
ajst-30189	86	8	new	new	ADJ
ajst-30189	86	9	approach	approach	NOUN
ajst-30189	86	10	for	for	ADP
ajst-30189	86	11	coalbed	coalbe	VERB
ajst-30189	86	12	methane	methane	NOUN
ajst-30189	86	13	mining	mining	NOUN
ajst-30189	86	14	,	,	PUNCT
ajst-30189	86	15	which	which	PRON
ajst-30189	86	16	is	be	AUX
ajst-30189	86	17	expected	expect	VERB
ajst-30189	86	18	to	to	PART
ajst-30189	86	19	solve	solve	VERB
ajst-30189	86	20	the	the	DET
ajst-30189	86	21	shortcomings	shortcoming	NOUN
ajst-30189	86	22	of	of	ADP
ajst-30189	86	23	existing	exist	VERB
ajst-30189	86	24	mining	mining	NOUN
ajst-30189	86	25	technologies	technology	NOUN
ajst-30189	86	26	,	,	PUNCT
ajst-30189	86	27	improve	improve	VERB
ajst-30189	86	28	mining	mining	NOUN
ajst-30189	86	29	efficiency	efficiency	NOUN
ajst-30189	86	30	and	and	CCONJ
ajst-30189	86	31	production	production	NOUN
ajst-30189	86	32	,	,	PUNCT
ajst-30189	86	33	promote	promote	VERB
ajst-30189	86	34	the	the	DET
ajst-30189	86	35	efficient	efficient	ADJ
ajst-30189	86	36	development	development	NOUN
ajst-30189	86	37	and	and	CCONJ
ajst-30189	86	38	utilization	utilization	NOUN
ajst-30189	86	39	of	of	ADP
ajst-30189	86	40	coalbed	coalbe	VERB
ajst-30189	86	41	methane	methane	NOUN
ajst-30189	86	42	resources	resource	NOUN
ajst-30189	86	43	,	,	PUNCT
ajst-30189	86	44	and	and	CCONJ
ajst-30189	86	45	have	have	VERB
ajst-30189	86	46	important	important	ADJ
ajst-30189	86	47	application	application	NOUN
ajst-30189	86	48	value	value	NOUN
ajst-30189	86	49	and	and	CCONJ
ajst-30189	86	50	broad	broad	ADJ
ajst-30189	86	51	development	development	NOUN
ajst-30189	86	52	prospects	prospect	NOUN
ajst-30189	86	53	in	in	ADP
ajst-30189	86	54	the	the	DET
ajst-30189	86	55	field	field	NOUN
ajst-30189	86	56	of	of	ADP
ajst-30189	86	57	energy	energy	NOUN
ajst-30189	86	58	exploration	exploration	NOUN
ajst-30189	86	59	and	and	CCONJ
ajst-30189	86	60	development	development	NOUN
ajst-30189	86	61	.	.	PUNCT
ajst-30189	87	1	references	reference	NOUN
ajst-30189	87	2	[	[	X
ajst-30189	87	3	1	1	NUM
ajst-30189	87	4	]	]	X
ajst-30189	87	5	bai	bai	PROPN
ajst-30189	87	6	jianping	jianping	NOUN
ajst-30189	87	7	application	application	NOUN
ajst-30189	87	8	of	of	ADP
ajst-30189	87	9	microseismic	microseismic	ADJ
ajst-30189	87	10	method	method	NOUN
ajst-30189	87	11	in	in	ADP
ajst-30189	87	12	monitoring	monitor	VERB
ajst-30189	87	13	artificial	artificial	ADJ
ajst-30189	87	14	cracks	crack	NOUN
ajst-30189	87	15	in	in	ADP
ajst-30189	88	1	coalbed	coalbe	VERB
ajst-30189	88	2	methane	methane	NOUN
ajst-30189	88	3	wells	well	NOUN
ajst-30189	89	1	[	[	X
ajst-30189	89	2	j	j	X
ajst-30189	89	3	]	]	X
ajst-30189	89	4	china	china	PROPN
ajst-30189	89	5	coalbed	coalbe	VERB
ajst-30189	89	6	methane	methane	NOUN
ajst-30189	89	7	,	,	PUNCT
ajst-30189	89	8	2006,3	2006,3	NUM
ajst-30189	89	9	(	(	PUNCT
ajst-30189	89	10	3	3	NUM
ajst-30189	89	11	):	):	PUNCT
ajst-30189	89	12	34	34	NUM
ajst-30189	89	13	-	-	SYM
ajst-30189	89	14	36	36	NUM
ajst-30189	90	1	[	[	X
ajst-30189	90	2	2	2	NUM
ajst-30189	90	3	]	]	PUNCT
ajst-30189	90	4	shen	shen	PROPN
ajst-30189	90	5	ping	ping	PROPN
ajst-30189	90	6	application	application	PROPN
ajst-30189	90	7	of	of	ADP
ajst-30189	90	8	hydraulic	hydraulic	NOUN
ajst-30189	90	9	sandblasting	sandblasting	NOUN
ajst-30189	90	10	perforation	perforation	NOUN
ajst-30189	90	11	fracturing	fracturing	NOUN
ajst-30189	90	12	technology	technology	NOUN
ajst-30189	90	13	in	in	ADP
ajst-30189	90	14	coalbed	coalbe	VERB
ajst-30189	90	15	methane	methane	NOUN
ajst-30189	90	16	production	production	NOUN
ajst-30189	90	17	increase	increase	NOUN
ajst-30189	90	18	[	[	X
ajst-30189	90	19	j	j	X
ajst-30189	90	20	]	]	X
ajst-30189	90	21	.	.	PUNCT
ajst-30189	91	1	shanxi	shanxi	PROPN
ajst-30189	91	2	coking	coking	PROPN
ajst-30189	91	3	coal	coal	NOUN
ajst-30189	91	4	technology	technology	NOUN
ajst-30189	91	5	,	,	PUNCT
ajst-30189	91	6	2021	2021	NUM
ajst-30189	91	7	,	,	PUNCT
ajst-30189	91	8	45	45	NUM
ajst-30189	91	9	(	(	PUNCT
ajst-30189	91	10	07	07	NUM
ajst-30189	91	11	):	):	PUNCT
ajst-30189	91	12	40	40	NUM
ajst-30189	91	13	-	-	SYM
ajst-30189	91	14	42	42	NUM
ajst-30189	91	15	+	+	NOUN
ajst-30189	91	16	45	45	NUM
ajst-30189	91	17	.	.	PUNCT
ajst-30189	92	1	[	[	X
ajst-30189	92	2	3	3	X
ajst-30189	92	3	]	]	X
ajst-30189	92	4	shi	shi	PROPN
ajst-30189	92	5	xiaozhi	xiaozhi	PROPN
ajst-30189	92	6	;	;	PUNCT
ajst-30189	92	7	zhang	zhang	PROPN
ajst-30189	92	8	juncheng	juncheng	PROPN
ajst-30189	92	9	;	;	PUNCT
ajst-30189	92	10	jiao	jiao	PROPN
ajst-30189	92	11	yajun	yajun	PROPN
ajst-30189	92	12	;	;	PUNCT
ajst-30189	92	13	liu	liu	PROPN
ajst-30189	92	14	chen	chen	PROPN
ajst-30189	92	15	;	;	PUNCT
ajst-30189	92	16	song	song	PROPN
ajst-30189	92	17	yi	yi	PROPN
ajst-30189	92	18	;	;	PUNCT
ajst-30189	92	19	zhang	zhang	PROPN
ajst-30189	92	20	nanqiao	nanqiao	PROPN
ajst-30189	92	21	continuous	continuous	ADJ
ajst-30189	92	22	oil	oil	NOUN
ajst-30189	92	23	pipe	pipe	NOUN
ajst-30189	92	24	multi	multi	NOUN
ajst-30189	92	25	cluster	cluster	NOUN
ajst-30189	92	26	sandblasting	sandblast	VERB
ajst-30189	92	27	perforation	perforation	NOUN
ajst-30189	92	28	sand	sand	NOUN
ajst-30189	92	29	filling	fill	VERB
ajst-30189	92	30	temporary	temporary	ADJ
ajst-30189	92	31	plugging	plugging	NOUN
ajst-30189	92	32	segmented	segment	VERB
ajst-30189	92	33	volume	volume	NOUN
ajst-30189	92	34	fracturing	fracturing	NOUN
ajst-30189	92	35	technology	technology	NOUN
ajst-30189	93	1	[	[	X
ajst-30189	93	2	j	j	X
ajst-30189	93	3	]	]	X
ajst-30189	93	4	.	.	PUNCT
ajst-30189	94	1	drilling	drilling	NOUN
ajst-30189	94	2	and	and	CCONJ
ajst-30189	94	3	production	production	NOUN
ajst-30189	94	4	technology	technology	NOUN
ajst-30189	94	5	,	,	PUNCT
ajst-30189	94	6	2020	2020	NUM
ajst-30189	94	7	,	,	PUNCT
ajst-30189	94	8	43	43	NUM
ajst-30189	94	9	(	(	PUNCT
ajst-30189	94	10	06	06	NUM
ajst-30189	94	11	):	):	PUNCT
ajst-30189	94	12	35	35	NUM
ajst-30189	94	13	-	-	SYM
ajst-30189	94	14	37	37	NUM
ajst-30189	94	15	+	+	NOUN
ajst-30189	94	16	8	8	NUM
ajst-30189	94	17	[	[	SYM
ajst-30189	94	18	4	4	NUM
ajst-30189	94	19	]	]	X
ajst-30189	94	20	wu	wu	PROPN
ajst-30189	94	21	xiaoming	xiaoming	PROPN
ajst-30189	94	22	,	,	PUNCT
ajst-30189	94	23	tu	tu	PROPN
ajst-30189	94	24	houze	houze	PROPN
ajst-30189	94	25	typical	typical	ADJ
ajst-30189	94	26	fracture	fracture	PROPN
ajst-30189	94	27	morphology	morphology	NOUN
ajst-30189	94	28	analysis	analysis	NOUN
ajst-30189	94	29	and	and	CCONJ
ajst-30189	94	30	basic	basic	ADJ
ajst-30189	94	31	size	size	NOUN
ajst-30189	94	32	determination	determination	NOUN
ajst-30189	94	33	of	of	ADP
ajst-30189	94	34	coal	coal	NOUN
ajst-30189	94	35	seam	seam	NOUN
ajst-30189	94	36	hydraulic	hydraulic	NOUN
ajst-30189	94	37	fracturing	fracturing	NOUN
ajst-30189	95	1	[	[	X
ajst-30189	95	2	j	j	X
ajst-30189	95	3	]	]	X
ajst-30189	95	4	,	,	PUNCT
ajst-30189	95	5	journal	journal	NOUN
ajst-30189	95	6	of	of	ADP
ajst-30189	95	7	china	china	PROPN
ajst-30189	95	8	university	university	PROPN
ajst-30189	95	9	of	of	ADP
ajst-30189	95	10	geosciences	geoscience	NOUN
ajst-30189	95	11	,	,	PUNCT
ajst-30189	95	12	1995	1995	NUM
ajst-30189	95	13	,	,	PUNCT
ajst-30189	95	14	20	20	NUM
ajst-30189	95	15	(	(	PUNCT
ajst-30189	95	16	1	1	NUM
ajst-30189	95	17	):	):	PUNCT
ajst-30189	95	18	113	113	NUM
ajst-30189	95	19	-	-	SYM
ajst-30189	95	20	114	114	NUM
ajst-30189	95	21	[	[	X
ajst-30189	95	22	5	5	NUM
ajst-30189	95	23	]	]	PUNCT
ajst-30189	95	24	yang	yang	PROPN
ajst-30189	95	25	yongming	yongming	PROPN
ajst-30189	95	26	;	;	PUNCT
ajst-30189	95	27	li	li	PROPN
ajst-30189	95	28	xiao	xiao	PROPN
ajst-30189	95	29	;	;	PUNCT
ajst-30189	95	30	wang	wang	PROPN
ajst-30189	95	31	zhen	zhen	PROPN
ajst-30189	95	32	;	;	PUNCT
ajst-30189	95	33	ju	ju	PROPN
ajst-30189	95	34	yang	yang	PROPN
ajst-30189	96	1	the	the	DET
ajst-30189	96	2	influence	influence	NOUN
ajst-30189	96	3	of	of	ADP
ajst-30189	96	4	perforation	perforation	NOUN
ajst-30189	96	5	parameters	parameter	NOUN
ajst-30189	96	6	on	on	ADP
ajst-30189	96	7	the	the	DET
ajst-30189	96	8	propagation	propagation	NOUN
ajst-30189	96	9	law	law	NOUN
ajst-30189	96	10	of	of	ADP
ajst-30189	96	11	hydraulic	hydraulic	ADJ
ajst-30189	96	12	fracturing	fracturing	NOUN
ajst-30189	96	13	fractures	fracture	NOUN
ajst-30189	96	14	in	in	ADP
ajst-30189	96	15	heterogeneous	heterogeneous	ADJ
ajst-30189	96	16	sandstone	sandstone	NOUN
ajst-30189	97	1	[	[	X
ajst-30189	97	2	j	j	X
ajst-30189	97	3	]	]	X
ajst-30189	97	4	.	.	PUNCT
ajst-30189	98	1	journal	journal	PROPN
ajst-30189	98	2	of	of	ADP
ajst-30189	98	3	civil	civil	ADJ
ajst-30189	98	4	engineering	engineering	NOUN
ajst-30189	98	5	,	,	PUNCT
ajst-30189	98	6	2022	2022	NUM
ajst-30189	98	7	,	,	PUNCT
ajst-30189	98	8	55	55	NUM
ajst-30189	98	9	(	(	PUNCT
ajst-30189	98	10	01	01	NUM
ajst-30189	98	11	):	):	PUNCT
ajst-30189	98	12	1	1	NUM
ajst-30189	98	13	-	-	SYM
ajst-30189	98	14	9	9	NUM
ajst-30189	98	15	.	.	PUNCT
ajst-30189	99	1	[	[	X
ajst-30189	99	2	6	6	NUM
ajst-30189	99	3	]	]	X
ajst-30189	99	4	han	han	PROPN
ajst-30189	99	5	chao	chao	PROPN
ajst-30189	99	6	;	;	PUNCT
ajst-30189	99	7	liu	liu	PROPN
ajst-30189	99	8	feng	feng	PROPN
ajst-30189	99	9	;	;	PUNCT
ajst-30189	99	10	yu	yu	PROPN
ajst-30189	99	11	jiansheng	jiansheng	PROPN
ajst-30189	99	12	;	;	PUNCT
ajst-30189	99	13	wang	wang	PROPN
ajst-30189	99	14	xiao	xiao	PROPN
ajst-30189	99	15	;	;	PUNCT
ajst-30189	99	16	chen	chen	PROPN
ajst-30189	99	17	yushan	yushan	PROPN
ajst-30189	99	18	hydraulic	hydraulic	PROPN
ajst-30189	99	19	sandblasting	sandblasting	NOUN
ajst-30189	99	20	perforation	perforation	NOUN
ajst-30189	99	21	fracturing	fracturing	NOUN
ajst-30189	99	22	production	production	NOUN
ajst-30189	99	23	technology	technology	NOUN
ajst-30189	99	24	for	for	ADP
ajst-30189	99	25	bohai	bohai	NOUN
ajst-30189	99	26	a	a	DET
ajst-30189	99	27	oilfield	oilfield	NOUN
ajst-30189	100	1	[	[	X
ajst-30189	100	2	j	j	X
ajst-30189	100	3	]	]	X
ajst-30189	100	4	.	.	PUNCT
ajst-30189	101	1	oil	oil	NOUN
ajst-30189	101	2	and	and	CCONJ
ajst-30189	101	3	gas	gas	NOUN
ajst-30189	101	4	well	well	NOUN
ajst-30189	101	5	testing	testing	NOUN
ajst-30189	101	6	,	,	PUNCT
ajst-30189	101	7	2020,29	2020,29	NUM
ajst-30189	101	8	(	(	PUNCT
ajst-30189	101	9	04	04	NUM
ajst-30189	101	10	):	):	PUNCT
ajst-30189	101	11	56	56	NUM
ajst-30189	101	12	-	-	SYM
ajst-30189	101	13	62	62	NUM
ajst-30189	102	1	[	[	X
ajst-30189	102	2	7	7	NUM
ajst-30189	102	3	]	]	X
ajst-30189	102	4	liu	liu	PROPN
ajst-30189	102	5	peng	peng	PROPN
ajst-30189	102	6	analysis	analysis	NOUN
ajst-30189	102	7	of	of	ADP
ajst-30189	102	8	problems	problem	NOUN
ajst-30189	102	9	and	and	CCONJ
ajst-30189	102	10	process	process	NOUN
ajst-30189	102	11	optimization	optimization	NOUN
ajst-30189	102	12	of	of	ADP
ajst-30189	102	13	hydraulic	hydraulic	ADJ
ajst-30189	102	14	jet	jet	NOUN
ajst-30189	102	15	fracturing	fracturing	NOUN
ajst-30189	102	16	tools	tool	NOUN
ajst-30189	102	17	[	[	X
ajst-30189	102	18	j	j	X
ajst-30189	102	19	]	]	X
ajst-30189	102	20	.	.	PUNCT
ajst-30189	103	1	china	china	PROPN
ajst-30189	103	2	petroleum	petroleum	PROPN
ajst-30189	103	3	and	and	CCONJ
ajst-30189	103	4	chemical	chemical	NOUN
ajst-30189	103	5	industry	industry	NOUN
ajst-30189	103	6	standards	standard	NOUN
ajst-30189	103	7	and	and	CCONJ
ajst-30189	103	8	quality	quality	NOUN
ajst-30189	103	9	,	,	PUNCT
ajst-30189	103	10	2019	2019	NUM
ajst-30189	103	11	,	,	PUNCT
ajst-30189	103	12	39	39	NUM
ajst-30189	103	13	(	(	PUNCT
ajst-30189	103	14	13	13	NUM
ajst-30189	103	15	):	):	PUNCT
ajst-30189	103	16	253254	253254	NUM
ajst-30189	103	17	.	.	PUNCT
ajst-30189	104	1	[	[	X
ajst-30189	104	2	8	8	NUM
ajst-30189	104	3	]	]	X
ajst-30189	104	4	guo	guo	PROPN
ajst-30189	104	5	dali	dali	PROPN
ajst-30189	104	6	,	,	PUNCT
ajst-30189	104	7	zhao	zhao	PROPN
ajst-30189	104	8	jinzhou	jinzhou	PROPN
ajst-30189	104	9	,	,	PUNCT
ajst-30189	104	10	wu	wu	PROPN
ajst-30189	104	11	gang	gang	PROPN
ajst-30189	104	12	,	,	PUNCT
ajst-30189	104	13	et	et	PROPN
ajst-30189	104	14	al	al	PROPN
ajst-30189	104	15	.	.	PROPN
ajst-30189	104	16	,	,	PUNCT
ajst-30189	104	17	research	research	NOUN
ajst-30189	104	18	on	on	ADP
ajst-30189	104	19	optimization	optimization	NOUN
ajst-30189	104	20	design	design	NOUN
ajst-30189	104	21	method	method	NOUN
ajst-30189	104	22	for	for	ADP
ajst-30189	104	23	hydraulic	hydraulic	ADJ
ajst-30189	104	24	fracturing	fracturing	NOUN
ajst-30189	104	25	[	[	X
ajst-30189	104	26	j	j	X
ajst-30189	104	27	]	]	X
ajst-30189	104	28	,	,	PUNCT
ajst-30189	104	29	journal	journal	NOUN
ajst-30189	104	30	of	of	ADP
ajst-30189	104	31	southwest	southwest	PROPN
ajst-30189	104	32	petroleum	petroleum	PROPN
ajst-30189	104	33	institute	institute	NOUN
ajst-30189	104	34	,	,	PUNCT
ajst-30189	104	35	1999	1999	NUM
ajst-30189	104	36	,	,	PUNCT
ajst-30189	104	37	21	21	NUM
ajst-30189	104	38	(	(	PUNCT
ajst-30189	104	39	4	4	NUM
ajst-30189	104	40	):	):	PUNCT
ajst-30189	104	41	61	61	NUM
ajst-30189	104	42	-	-	SYM
ajst-30189	104	43	63	63	NUM
ajst-30189	105	1	[	[	X
ajst-30189	105	2	9	9	NUM
ajst-30189	105	3	]	]	X
ajst-30189	105	4	zhang	zhang	PROPN
ajst-30189	105	5	daode	daode	PROPN
ajst-30189	105	6	horizontal	horizontal	PROPN
ajst-30189	106	1	well	well	INTJ
ajst-30189	106	2	long	long	ADJ
ajst-30189	106	3	section	section	NOUN
ajst-30189	106	4	perforation	perforation	NOUN
ajst-30189	106	5	and	and	CCONJ
ajst-30189	106	6	old	old	ADJ
ajst-30189	106	7	well	well	NOUN
ajst-30189	106	8	fracturing	fracturing	NOUN
ajst-30189	106	9	technology	technology	NOUN
ajst-30189	107	1	[	[	X
ajst-30189	107	2	j	j	X
ajst-30189	107	3	]	]	X
ajst-30189	107	4	.	.	PUNCT
ajst-30189	108	1	chemical	chemical	NOUN
ajst-30189	108	2	engineering	engineering	NOUN
ajst-30189	108	3	and	and	CCONJ
ajst-30189	108	4	equipment	equipment	NOUN
ajst-30189	108	5	,	,	PUNCT
ajst-30189	108	6	2022	2022	NUM
ajst-30189	108	7	,	,	PUNCT
ajst-30189	108	8	(	(	PUNCT
ajst-30189	108	9	02	02	NUM
ajst-30189	108	10	):	):	PUNCT
ajst-30189	108	11	95	95	NUM
ajst-30189	108	12	-	-	SYM
ajst-30189	108	13	98	98	NUM
ajst-30189	108	14	.	.	PUNCT
ajst-30189	109	1	[	[	X
ajst-30189	109	2	10	10	NUM
ajst-30189	109	3	]	]	X
ajst-30189	109	4	wang	wang	PROPN
ajst-30189	109	5	shuihui	shuihui	PROPN
ajst-30189	109	6	,	,	PUNCT
ajst-30189	109	7	lu	lu	PROPN
ajst-30189	109	8	yongjun	yongjun	PROPN
ajst-30189	109	9	,	,	PUNCT
ajst-30189	109	10	li	li	PROPN
ajst-30189	109	11	yongping	yongping	PROPN
ajst-30189	109	12	,	,	PUNCT
ajst-30189	109	13	et	et	PROPN
ajst-30189	109	14	al	al	PROPN
ajst-30189	109	15	.	.	PROPN
ajst-30189	109	16	,	,	PUNCT
ajst-30189	109	17	progress	progress	NOUN
ajst-30189	109	18	and	and	CCONJ
ajst-30189	109	19	application	application	NOUN
ajst-30189	109	20	of	of	ADP
ajst-30189	109	21	unconventional	unconventional	ADJ
ajst-30189	109	22	reservoir	reservoir	NOUN
ajst-30189	109	23	fracturing	fracturing	NOUN
ajst-30189	109	24	technology	technology	NOUN
ajst-30189	110	1	[	[	X
ajst-30189	110	2	j	j	X
ajst-30189	110	3	]	]	X
ajst-30189	110	4	,	,	PUNCT
ajst-30189	110	5	journal	journal	NOUN
ajst-30189	110	6	of	of	ADP
ajst-30189	110	7	petroleum	petroleum	NOUN
ajst-30189	110	8	,	,	PUNCT
ajst-30189	110	9	2012	2012	NUM
ajst-30189	110	10	,	,	PUNCT
ajst-30189	110	11	33:149	33:149	NUM
ajst-30189	110	12	-	-	SYM
ajst-30189	110	13	157	157	NUM
ajst-30189	111	1	[	[	X
ajst-30189	111	2	11	11	NUM
ajst-30189	111	3	]	]	X
ajst-30189	111	4	zhang	zhang	PROPN
ajst-30189	111	5	gan	gan	PROPN
ajst-30189	111	6	,	,	PUNCT
ajst-30189	111	7	wu	wu	PROPN
ajst-30189	111	8	jianguang	jianguang	PROPN
ajst-30189	111	9	,	,	PUNCT
ajst-30189	111	10	sun	sun	PROPN
ajst-30189	111	11	gaosen	gaosen	PROPN
ajst-30189	111	12	,	,	PUNCT
ajst-30189	111	13	etc	etc	X
ajst-30189	111	14	application	application	NOUN
ajst-30189	111	15	analysis	analysis	NOUN
ajst-30189	111	16	of	of	ADP
ajst-30189	111	17	microseismic	microseismic	ADJ
ajst-30189	111	18	monitoring	monitoring	NOUN
ajst-30189	111	19	technology	technology	NOUN
ajst-30189	111	20	for	for	ADP
ajst-30189	111	21	fracturing	fracturing	NOUN
ajst-30189	111	22	and	and	CCONJ
ajst-30189	111	23	fracturing	fracturing	NOUN
ajst-30189	111	24	of	of	ADP
ajst-30189	111	25	medium	medium	ADJ
ajst-30189	111	26	layer	layer	NOUN
ajst-30189	111	27	gas	gas	NOUN
ajst-30189	111	28	wells	well	NOUN
ajst-30189	112	1	[	[	X
ajst-30189	112	2	j	j	X
ajst-30189	112	3	]	]	X
ajst-30189	112	4	,	,	PUNCT
ajst-30189	112	5	science	science	NOUN
ajst-30189	112	6	,	,	PUNCT
ajst-30189	112	7	technology	technology	NOUN
ajst-30189	112	8	and	and	CCONJ
ajst-30189	112	9	engineering	engineering	NOUN
ajst-30189	112	10	,	,	PUNCT
ajst-30189	112	11	2013,13	2013,13	PROPN
ajst-30189	112	12	(	(	PUNCT
ajst-30189	112	13	23	23	NUM
ajst-30189	112	14	):	):	PUNCT
ajst-30189	112	15	66816690	66816690	NUM
ajst-30189	113	1	[	[	X
ajst-30189	113	2	12	12	NUM
ajst-30189	113	3	]	]	X
ajst-30189	113	4	zhuang	zhuang	PROPN
ajst-30189	113	5	wei	wei	PROPN
ajst-30189	113	6	,	,	PUNCT
ajst-30189	113	7	theoretical	theoretical	ADJ
ajst-30189	113	8	and	and	CCONJ
ajst-30189	113	9	experimental	experimental	ADJ
ajst-30189	113	10	study	study	NOUN
ajst-30189	113	11	on	on	ADP
ajst-30189	113	12	hydraulic	hydraulic	ADJ
ajst-30189	113	13	sandblasting	sandblasting	NOUN
ajst-30189	113	14	perforation	perforation	NOUN
ajst-30189	113	15	[	[	X
ajst-30189	113	16	d	d	X
ajst-30189	113	17	]	]	X
ajst-30189	113	18	.	.	PUNCT
ajst-30189	114	1	china	china	PROPN
ajst-30189	114	2	university	university	PROPN
ajst-30189	114	3	of	of	ADP
ajst-30189	114	4	petroleum	petroleum	NOUN
ajst-30189	114	5	,	,	PUNCT
ajst-30189	114	6	2008	2008	NUM
ajst-30189	114	7	,	,	PUNCT
ajst-30189	114	8	04	04	NUM