1.towards or in the rear or back
1.However, in jet-propulsion the air is directed rearwards in a jet from the engine itself.
可是,在喷气推进器中,空气是从发动机本身,经喷管导向后部的。
2.In both, propulsive force is derived from the reaction produced by a stream of air driven rearwards at high velocity.
这两类发动机都是靠高速向后喷射气流所得到的反作用力而发出推力的。
3.It also had the ventral gondola under the nose, from which a gunner could fire rearwards.
它还腹侧敞车下鼻子,从其中一名炮手可大火在后面。