id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-1028	Zheng, Duan	Research on Hazardous Chemical Road Transportation Route Optimization Based on the New Ant Colony Algorithm 	2017	6	.pdf	application/pdf	3103	178	56	The research background of transportation and hazardous chemical road transportation are introduced. 2. Accident characteristics of hazardous chemical road transportation	cache/cet-1028.pdf	txt/cet-1028.txt