助推

The rockets give the planes and missiles enoughspeed to make the ramjet engine workable.

这种助推火箭为飞机和导弹提供足够的速度，以使冲压式喷气发动机可以开动工作。

The delta - winged Columbia, before reaching the orbit, jettisoned its dual booster rockets two minutes into flight.

三角翼的哥伦比亚号航天飞机在进入轨道前， 起飞两分钟就抛下其两个助推火箭。

I´ve been working at NASA, developing hydropowered missile defense systems.

我一直在太空总署工作， 研发氢气助推的导弹防御系统。

As It´streaks through its three boost stages, the GBI will gain speed.

通过三级助推阶段， GBI会获得速度。

N : We´ll have to give it a push - start, I´m afraid.

我看我们得用助推的办法起动这辆车了。