Controlling Method for Methane Exceeding Limit in the Upper Corners of Middle-s licing Faces白国基, 刘文军5-6
Evaluation on Outburst Danger in Protected Seam and Its Application to Coal Winn ing of Roof Caving夏仕柏7-8
High Level Borehole Methane Drainage in Winning Faces under the Complicated Geo logical Conditions程新明, 卢英俊28-29
