Gas ejection from gun muzzle is a more complex unsteady process.

火炮的后效期现象是一种比较复杂的非定常气体动力学现象.

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Abstract: Gun muzzle smog is strongly related to oxygen balance of gun propellant.

文摘: 通过理论计算,对比了几种提高火药氧平衡技术途径的效果.

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End, the author lets her die under own gun muzzle, meaning a negative attitude clearly.

最后, 作者让她死在自己的枪口之下, 明确地表示了否定的态度.

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