“emergency power unit”的概念、定义、翻译、参考文献-科学参考

单词	emergency power unit
释义	emergency power unit Encyclopedia 工学飞机第二动力系统释 emergency power unit应急动力装置飞机第二动力系统中，在飞机飞行过程中出现主电源和（或）液压源故障时，驱动应急液压泵和（或）应急发电机向飞机提供应急液压能和（或）应急电能的小型涡轮动力装置。
随便看	planetary data system，PDS planetary dynamo planetary embryo planetary ephemeris planetary evolution planetary exploration planetary gear drive planetary geodesy planetary geology planetary interior or planetary internal structure planetary/interplanetary probe planetary ionosphere planetary magnetic field planetary magnetosphere planetary-mass companion planetary-mass object planetary meteorology planetary mill planetary motion planetary nebula planetary nomenclature planetary nutation terms planetary occultation planetary occultation of star planetary orbit

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。