perfect elastic collisionperfectly elastic collisionperfectly elastic impact完全: complete; whole; perfect弹性碰撞: elastic collision非完全弹性碰撞: imperfect elastic collision; imperfect inelastic collision; non perfect elastic collision; non-perfect elastic collision完全非弹性碰撞: collision, total inelastic; completely inelastic collision; perfect inelastic collision; perfectly inelastic collision; perfectly inelastic impact半弹性碰撞: semi-elastic impact下载手机词典可随时随地查词查翻译
