longwall mining with sublevel caving 长壁放顶煤采煤法
The ventilation system provides a new method to realize the safe and efficient mining of high gas longwall mining with sublevel caving.
这一通风系统可为其他高瓦斯综放面安全高效开采提供了一条新的技术途径。
With the increase of the depth of coal seams mined, rock bursts will easily occur in gateways with fully-mechanized sublevel caving mining.
随着煤矿开采深度增加，综放开采回采巷道易发生冲击地压危害。
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