“rifling angle”的概念、定义、翻译、参考文献-科学参考

单词	rifling angle
释义	rifling angle Encyclopedia 工学刑事科学技术释 rifling angle缠度与缠角为了增加弹丸在空气中飞行的稳度，提高射击精度，在枪管内壁设计了与枪管纵轴线呈一定倾斜角度的膛线，赋予弹丸以导转力，使弹丸围绕自己纵向轴心旋转飞行。膛线缠度是膛线的导程与枪管口径的比值，导程又称缠距，是膛线旋转一周沿枪管轴线方向前进的距离。膛线上任意一点的切线与枪管轴线的夹角叫膛线缠角。
随便看	transition of an automaton transition of free shear flows transition of spontaneous emission transition of structures transition of thermal convection transition operator transition operator semigroup transition orbit transition paradigm transition phenomenon transition point transition point of electricity transition point of magnetism transition probability transition probability and transition speed transition probability density transition probability distribution transition probability function transition probability matrix transition process transition radiation transition radiation detector transition range transition rate transition region

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