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子弹穿孔弹
借助高速运动的子弹头的迅速冲击作用,穿透阻隔物的射孔弹,称为子弹穿孔弹。它是用发射药燃烧产生的高压气体,推动子弹运动,利用弹头携带的动能,穿透油管、套管和目的层,形成出油孔道
expl.
bullet perforator
子弹穿孔弹:
3 phrases
in 2 subjects
Architecture
1
Technology
2
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