step-Rocket
基本解释
- 多级火箭
英汉例句
- 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。 - 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。 - One of the ways to make step rockets is to put the stages side by side at the bottom.
制造多级火箭的一种方法是把各级火箭并排放在底部。 - Rockets with more than one stage are called step rockets.
多于一级的火箭称为多级火箭。 - These are two ways to make step rockets, one is to put the stages one on top lr the other.
有两种制造多级火箭的方法，一种是把一级放在另一级的项上。