7Feasibility Analysis of Ascending Mining in Deep Mining in Zhangxiaolou Coal Mine of Pangzhuang Colliery17-18
12Bolting Technology of Whole Coal Roadway in Fully Mechanized Caving Face of Shanhejian Coal Mine34-36
17Comprehensive Improvement and Preventing Technique of Water Hazard in Zhangshuanglou Coal Mine47-49