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聚能射孔器
dril. jet gun
geophys. jet perforator
oil shaped charge perforator
聚能射孔器利用聚能效应产生射流完成射孔作业的射孔器，分为有枪身和无枪身两大类
expl. jet-perforator
聚 能射孔器
: 6 phrases in 1 subject
Oil / petroleum6

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