感应水雷[地雷]
With mining deepen, pressure increase gradually, the weighing down of stoped out area and other safety problems influence the normal production of mine seriously, serious earth pressure activities become the primary issue influence mine safety and efficiency of mining.
随着开采中段的下降,地压逐渐增大,采空区顶帮局部冒落等对矿山正常的生产造成了严重的影响,严重的地压活动成为制约矿山安全、高效开采的首要问题。
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