Study on Lowest Wind Speed and Pressure Loss of Drilling Dust Extraction with Wind-force for BoreholeWANG Hai-feng, LI Zeng-hua, YANG Yong-liang, QI Feng4-6
Practice of Methane Drainage in Gob in Chengzhuang Coal MineLI Guo-biao, ZHANG Hai-jun, HE Guang-hui7-9
Practice of Extinguishing Spontaneous Fire Using Filling Water Way through Short BoreholePENG Xiang-kui13-16
Practice of Fighting Fire Technology in Fully-mechanized Caving Roof Faces without Coal ColumnGONG Chun-sheng16-18
Development and Application of Automatic Pressure Regulating Device in West Flank of Tangshan Coal MineZHANG Rui-jiang, ZHENG Qing-xue, FENG Hai-feng19-20
Improvement of Electric Controlling Return Circuit of Oil Pump of MRH-S100-42 Tunnel Development MachineLI Yun26,35
