Numerical Analysis of Dynamic Temperature Field and Concentration Field in the process of Underground Coal Gasification杨兰和, 刘淑琴, 梁杰349-353
Profile Constructing and Elevation Designing of Soil Reclaimed by Hydraulic Dredge Pump in Mining Areas陈龙乾, 郭达志354-357
Occurrence and Distribution of Minor Toxic Elements in Coals of Fengfeng Coalfield, Heibei Province, North China代世峰, 任德贻, 刘建荣, 李生盛358-362
Sulphur Removal During Coal Pyrolysis in a Fluidized Bed of Reducing Condition刘青, 吕俊复, 张建胜, 岳光溪, 路霁鸰367-370
Research on Photolytic Residues of a New Herbicide of Propisochlor in Aqueous Media王敏欣, 赵淑莉, 朱书全, 韩梅, 王禹371-375
Characteristics of Extractable Organic Matter in PM10 of Urban Area--Case Study of Northwestern Beijing邵龙义, 贺桃娥, 李红, 时宗波, 李金娟383-387