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。

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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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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。

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