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rock blasting in tunnel
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rock blasting in tunnel
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理学
坑探工程
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rock blasting in tunnel
坑道爆破技术
在坑道内,将凿岩机凿出的钻眼(炮孔)里装填炸药,利用其爆炸产生的作用来破碎岩石,实现掘进的能量。
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