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
反推进火箭;制动火箭(宇宙飞船或航空飞机等航空器上的一种火箭,其发射方向与航空器飞行方向相反,从而使之减速) 返回 retrorocket