retrorocket
剑桥词典
- a rocket on a spacecraft or an aircraft that fires in the opposite direction to the direction in which the vehicle is travelling , in order to slow it down
反推進火箭;制動火箭(宇宙飛船或航空飛機等航空器上的一種火箭,其發射方曏與航空器飛行方曏相反,從而使之減速) 返回 retrorocket