| 单词 | ullage rocket |
| 释义 | ullage rocketnouna small hydrogen peroxide rocket engine that produces sufficient acceleration to keep propellants in their places when the main rocket is shut off Words nearby ullage rocketULF, Ulfilas, Ulhasnagar, uliginous, ullage, ullage rocket, Ullswater, ulluco, Ulm, ulmaceous, ulna Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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