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咼速射弹掘进采矿法
指利用高速飞行弹丸的能量,来开挖隧道进行采矿的一种施工方法。弹丸重约4rapid5kg,用混凝土做成,以 1500m/s 以上速度冲击工作面。目前,正在研制一种可远距离操作且采用液体炸药作为发射药的高速射弹掘进法
expl.
rapid excavation & mining
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