助推器组
the first stage of a multistage rocket
同义词： booster / booster rocket / takeoff booster / takeoff rocket
... 助推器燃烧室 launching chamber 助推器系统 booster system 助推器组 boost cluster; booster unit ...
... booster tank 胶管供水罐 booster unit 灭火组件<装在小型卡车或拖车上的移动式水罐、胶管卷盘和水泵 booster 助力器 ...
The way it works is that the entire rocket unit leaves Earth's atmosphere, and then the 15-story-tall rocket booster separates, flips and comes back to a landing zone six miles away.
它的工作方式是，整个火箭单元在离开地球大气层之前，15层楼高的火箭助推器完全分离并翻转，然后在六公里之外的着陆区重新着陆。