单词 | auxiliary power unit |
释义 | auxiliary power unitnounan additional engine fitted to an aircraft to operate when the main engines are not in use Words nearby auxiliary power unitauxetic, auxiliaries, auxiliary, auxiliary language, auxiliary note, auxiliary power unit, auxiliary rafter, auxiliary rotor, auxiliary tone, auxiliary verb, auxilytic 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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