“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	classicisme Classic of Ancient Chinese Mathematics, block-printed edition by Bao Hanzhi, Song Dynasty Classic of Mountains and Seas Classic of Music Classic of Poetry Classic of Questioning Classic of the Stars Classic of the Way and Virtue Classic of the Yellow Courts Classic on Divine Marvels Classic School Classics Colloquium Classics of Farming and Silkworm Raising Classics of Fish Breeding，On Pisciculture Classics of Parallel Style Proses of Qing Dynasty classics of preschool education Classics on Three Vitalities and the Way of Longevity classic style classic synapse classic trajectory calculation Classic Typological Linguistics classic vibration equations classification classification accuracy assessment Classification and Code of Disciplines

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