They would be built from shuttle booster rockets, fuel tanks and main engines, as well as moon rocket engines.

新型运载火箭将由飞船助推火箭、燃料箱、主发动机以及月球火箭发动机组成。

youdao

They have some sort of genetic booster rocket and they seem to be functioning better for longer periods of time than centenarians.

他们具有某种遗传助推性而且他们似乎要比百岁老人在更长时期内机能健硕。

youdao

The object was too light to be a brick, but it was the same density as a piece of foam from a solid rocket booster.

这一物体太轻了而不可能是一个砖，然而它和固体燃料助推器上的泡沫的密度是相同的。

youdao

B-52 bomber, dropped from the bomber, and then accelerated to Mach 7 by a booster rocket.

ECONOMIST: Hypersonic aviation

An interceptor missile launched over the Pacific Ocean, designed to destroy a dummy warhead, failed to separate from its booster rocket early Saturday.

CNN: US - After test fails, Russia again urges U.S. to drop missile shield proposal

Also, once it is on its own, Chandra will rely on a booster rocket that failed during a classified U.S. Air Force launch in April 1999.

CNN: Collins