Comprehensive Gas Control Techniques and Practice of Extra-thick Seams with Low Gas Permeability in Luling Coal Mine孙家斌, 孙贤斌1-2,5
Arrangement of Drainage Roadways in Roof and Analysis on Their Use effectiveness in No. 2 Xiejiaji Mine刘冠学, 唐永志, 许培德, 甘林堂3-5
Gas Drainage from Coal Faces with Borehles Arranged in Roof in an Airway and a Movable Drainage Pump刘西海, 张德银12-13