动量 動量

    dòngliàng

    1. Nounmomentum

    碰撞前后,系统的总动量保持不变。Pèngzhuàng qiánhòu, xìtǒng de zǒng dòngliàng bǎochí bùbiàn.The total momentum of the system remains constant before and after the collision.