1Research on Timely Prospecting Technology of Water Flowing Fracture Zone by Parallel Electrical Resistivity MethodWANG Hua, CHENG Hua, LIU Sheng-dongTest and Research1-5,92Study on Some Key Issues of Constructing Visual Mine Ventilation Simulation SystemWEI Lian-jiang, WANG De-Ming, WANG Qi, GE PengTest and Research6-93Integrated Technology of Gas Control for Highly Efficiently Mining Soft and Extra-thick Outburst Prone SeamDONG Gang-feng, SONG Qing-yao, LIU Jian-zhongTechnology Experiences10-134Main Component Analysis for Main Influence Factors of Coal and Gas OutburstLI Cheng-wu, XU Yan-ChaoTechnology Experiences14-185Coal Seam Gas Content Determined Using Coal Drillings Gas Desorption IndexesQIU Hai-sheng, ZHANG Bao-quanTechnology Experiences18-206Analysis on Gas Emission Abnormal of Drifting Roadway Based on Gas Geology ViewsTechnology Experiences21-247Application of Gas Comprehensive Drainage Technology in Xiagou Coal MineYU Feng, ZHANG Jian-ying, HUANG Yu-xiTechnology Experiences24-268Application of Dustproof Moisture Film in Return AirwayTechnology Experiences27-289Application of Simplification and Optimization Mine Ventilation System in Yangzhuang Coal MineZHANG Yong-sheng, CHEN Xue-songTechnology Experiences29-3010Technology of Coal Spontaneous Combustion PreventionSHI Zhong-xuTechnology Experiences31-3211Application of Spontaneous Combustion Prevention by Mud Injection in Xiaokang Coal MineTechnology Experiences33-3412Blanding off Sandstone Water by Mud Injection Technology in Inclined Shaft ConstructionZHAO Bao-taiTechnology Experiences35-3813Application of Pipeline Ventilation Scheme for Float Coal Fire TreatmentTechnology Experiences38-4014Bore Hanging Cage Methods Technology for Bunker ConstructionZHONG Chuan-yi, MENG Xiang-guang, CHEN Wen-xueTechnology Experiences41-4215Automatic Detecting Machine for Metal Detonator Shell Hidden FlawsTechnology Experiences43-4416Design and Application of New Advance Exhaust ValveYANG Jin, NIE Ya-lingTechnology Experiences45-4717Anti-interference Technology for Comprehensive Automatic Equipment of Transformer SubstationCHAI JiangTechnology Experiences48-5018Application of Retarder in Ground Transportation SystemHU PingTechnology Experiences51-5319Prediction and Analysis of Rock Mass Structure of Gas Content in Coal SeamYI Wei-xin, LU Run-shengIssue Discussion54-5620Probing into Outburst Prevention Technology for Coal Seam Uncovered in ShaftLI Guo-qiIssue Discussion57-59 