... 前进式开采法：advancing system 前进式开采：advancing mining 前进式长壁开采：advancing long wall ...
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longwall advancing mining 长壁前进式回采
longwall advancing mining face 长壁工作面
longwall advancing mining stope 长壁式回采工作面
sidestep advancing mining model 台阶式渐进开采
longwall advancing mining mining 长壁式开采
longwall advancing mining method 全面采矿法
longwall advancing mining system 长壁采煤法
The effect of basic rock thickness, mining height and advancing speed on roof breaking is analyzed.
并进一步分析了基岩厚度、采高、推进速度对顶板破断的影响。
From the theoretical and experimental study, the paper made a brief analysis of the advancing coal mining method affected on coal and gas outbursts.
从理论和试验研究两方面浅析了前进式采煤法对煤与瓦斯突出的影响。
The impact factors on advancing supporting speed of hydraulic support are analyzed in this article, and the path and methods to accelerate roof support speed of combined mining face are suggested.
分析了影响液压支架移架速度的因素，提出了加快综采面顶板支护速度的方法和措施。
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