Containing several shaped explosive charges, perforating guns are available in a range of sizes and configurations.

射孔枪包含几个聚能射孔弹，并有各种直径和结构。

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A downhole tool, generally run on wireline or coiled tubing, that USES the detonation of a shaped explosive charge to cut the surrounding tubing or casing wall.

通常用钢丝绳或挠性管下入的一种井下工具。它利用聚能射孔弹割断周围的油管或套管壁。

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Explosive with high density and high velocity can greatly increase the explosion energy and improve the effect of rock materials cutting by shaped charge .

通过提高炸药爆速、大装药密度等方法可以提高聚能装药爆炸后形成射流的能量和改善聚能爆破切割石材的效果。

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They have V-shaped hulls that deflect blasts from improvised explosive devices -- IEDs -- outward and away from passengers.

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