id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-11367	Che, Yuheng	Research on Pressure Relief and Effect Inspection of Upper Protection Layer Mining	2023	3	.pdf	application/pdf	2247	98	60	Measurement results of coal seam gas content within the protection range Drill hole number Gas content (m3/t) Drill hole number Gas content (m3/t) 1-1 4.53 3-1 4.34 1-2 3.86 3-2 4.67 1-3 4.72 3-3 4.86 2-1 3.60 4-1 5.04 2-2 4.02 4-2 5.21 2-3 5.11 4-3 4.78 3.3. Investigation and study on the mining effect of outburst coal seam protection layer	cache/ajst-11367.pdf	txt/ajst-11367.txt