Analogue meters and potentiometers can be replaced by digital meters and non-inductive resistors in the classical ballistic method, so it makes wiring and operating more easier.

用数表及无感固定电阻取代传统冲击法测量中的电流表和滑动变阻器，大大减缩短了测量装置的接线，同时使测量装置更易于操作。

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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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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