他们做弹道分析没？
详细剖析了新概念武器内弹道物理过程，建立了内弹道分析模型。
The interior ballistics process of the new small arms is analyzed in detail and the corresponding mathematical models are proposed also.
从初速的测试和处理方法上详细分析了内弹道设计中和外弹道分析中使用的初速概率误差的区别；
This paper presents the detail analysis of initial velocity on measuring means and treatments in internal and external ballistic design, and points out its differences.
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