“rocket engine precooling”的概念、定义、翻译、参考文献-科学参考

单词	rocket engine precooling
释义	rocket engine precooling Encyclopedia 工学〔设计与技术〕释 rocket engine precooling发动机预冷发动机起动前对发动机低温系统进行提前冷却，并达到冷却温度或时间要求，确保发动机正常起动的技术。
随便看	planetary planetary aberration planetary activator planetary alignmentm planetary and lunar ephemerides Planetary and Space Science planetary assembly planetary astronomy planetary atmosphere planetary atmosphere exploration planetary atmospheres planetary biology planetary boundaries planetary boundary planetary boundary layer planetary boundary layer parameterization planetary capture planetary companion planetary configuration planetary construction zone planetary continuously variable transmission planetary coordinate system planetary corona planetary cosmogony planetary data system，PDS

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