Stability control of the head faces top-coal is one of the key techniques of realizing high production and high efficiency to coal mining in fully mechanized top-coal caving face.
大倾角松软煤层综放面实现高产高效的关键之一是端面顶煤稳定性控制。
This method has realistic meaning in realizing high quality and efficiency of mining production.
此方法对实现矿井生产优质高效具有现实意义。
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