碰撞率rate: vt.,vi. 〔方言〕=ret. collision reaction rate: 碰撞反应速率collision theory of reaction rate: 反应速率的碰撞理论; 反应速率碰撞理论packet collision rate: 封包碰撞率in collision: 相撞, 在冲突中下载手机词典可随时随地查词查翻译