叙述了走向长壁后退式柔性掩护支架采煤法在急斜煤层中的应用及效果。
The paper discusses the application and the effects of the coal mining method with retreating-longwall flexible shield support in steeply-inclined coal seam.
介绍用掩护支架采煤代替斜切爆破采煤法的显著效益。
Obvious benefits were introduced to replace the means of chamfering demolition mining by shield support mining.
介绍用掩护支架采煤代替斜切爆破采煤法的显著效益。
Obvious benefits were introduced to replace the means of chamfering demolition mining by shield support mining.
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