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1·Different drag correction coefficients at different time points are introduced, and then both speed curve and ballistic curve fitting are finished.

采用在不同时间点增加阻力系数修正系数的方法拟合速度-时间曲线和位置-时间曲线。

2·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。

3·Because the pressure is a key feature of the internal ballistic inside, change curve of the pressure with time can show the circumstance of internal ballistic inside.

压力是内弹道的基本指标，压力随时间变化的曲线可以表征内弹道的情况。

4·One case is that given the armor's area density, the curve of the ballistic-limited velocity varying with the optimal coefficient is simulated;

一种情况是在给定靶板面密度条件下，模拟了弹道极限速度随优化系数的变化曲线；