单词 | booster rocket |
释义 | booster rocket [`büs·tǝr ´räk·ǝt] AEROSPACE ENGINEERING 1. Also known as booster. 2. A rocket motor, either solid- or liquid-fueled, that assists the normal propulsive system or sustainer engine of a rocket or aeronautical vehicle in some phase of its flight. 3. A rocket used to set a vehicle in motion before another engine takes over. |
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