结果表明，装药量在其正常范围内波动时，装药量的变化对初速或然误差的影响并不显著。
Results show that the effect of charge weight variation on the muzzle velocity probable error is not significant when the variation is within normal range.
星形是固体火箭发动机常用的装药形式，而其点火瞬时过程对发动机能否正常工作起着极为重要的作用。
Its ignition transient process plays an important role in determining whether a solid rocket motor can work normally.
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