Present State and Research Orientation of Gas Drainage From High-gassy Fully Mechanijed Caving Face in Chengzhuang Mine朱晓明, 姜铁明, 郝海金, 王平虎4-6
Brief Discussion on Transformation of Chongqing Environmental Industry from Potential Market to Realistic Market张宏华, 李蜀庆, 李建国7-9
Prediction of Gas Content of No. 11 Coal Seam in Xiezhuang Mine of Xinwen Coal Mining Area徐平, 张子戌, 刘勇, 王小明15-16,26