柯林斯詞典propulsion /pr??p?l??n/ 1. N-UNCOUNT Propulsion is the power that moves something, especially a vehicle, in a forward direction. 推進力[正式] [oft n N, N n] ...the submarine's propulsion system. ...該潛艇的推進系統(tǒng)。 返回 propulsion劍橋詞典a force that pushes something forward 推進；推動力 wind propulsion 風力推進 a propulsion system 推進系統(tǒng) 也見jet propulsion 返回 propulsion