单词	parking orbit
释义	parking orbit noun : an orbit of a spacecraft from which the spacecraft or another vehicle may be launched on a new trajectory Word History First Known Use 1953, in the meaning defined above
随便看	Salzkammergut saléeite Sam Sam Browne belt Sam Browne belts sam hill Sam Scratch sam-sodden sama Sama Veda Sama-Bajau Samadera samadh samadhi samadhis Samaj Samal samals saman samanala kanda Samandura samango monkey samani protistae protistan

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