step rocket

step rocket读音音标

英 [step ˈrɔkit]

美 [stɛp ˈrɑkɪt]

step rocket意思解释

n.

多级火箭；

英英释义

n.

a rocket having two or more rocket engines (each with its own fuel) that are fired in succession and jettisoned when the fuel is exhausted

同义词：multistage rocket

双语例句

用作名词(n.)Rockets with more than one stage are called step rockets.多于一级的火箭称为多级火箭。As the step rocket goes up, some of the stages at the side fall away.当多级火箭上升时，边上的几级火箭就脱落了。