Based on the wear curve of lands of erosion guns and a calculation method of engraving pressure, an interior ballistic model with the engraving process is established.

以烧蚀火炮的阳线磨损曲线和一种挤进压力计算方法为基础，建立了考虑弹带挤进过程的内弹道模型。

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The design method and restraint condition of arriving at optimum ballistic performance are given.

给出了达到最优弹道性能设计的方法与约束条件。

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In this paper aimed at the application problem of certain aviation bomb for a certain fighter, a coincidental calculation method of bomb ballistic coefficient is proposed.

针对某型战机上挂载使用某型航空炸弹的问题，提出了一种炸弹弹道系数的符合计算方法。

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Moreover, because protecting America's entire civilian electronic infrastructure is not fiscally feasible and because a ballistic missile is the most likely delivery vehicle for an EMP attack, the most prudent method to protect America is a missile defense system that could destroy a ballistic missile before it reaches U.S. airspace.

CENTERFORSECURITYPOLICY: Old threat with a new face