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cushion blastings cushion shot
expl.
缓冲爆破
;
气垫爆破
一种控制爆破方法: 1. 炸药与炮泥之间留有一段空气间隔,或者炮孔钻凿得远远大于所装填的药卷的直径。 2. 在炮孔底部留有一段空隙,在其上部再装填炸药
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