id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cord-032188-y02b92pe	Xu, Zhonglin	Characteristics of Air Filters	2013-08-14		.txt	text/plain	17708	900	61	It is usually to determine whether to change air filters according to the measured pressure drop or the outlet velocity of air filter. So it is necessary to know the characteristic of air filters and its design principle so as to use it correctly and effectively.	cache/cord-032188-y02b92pe.txt	txt/cord-032188-y02b92pe.txt
