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	database databased databases databasing datable databler datablest databuses datafile datafiles dataflow datagloves datal datamations datana datarias dataries datary datasets datch datcha datchas date date back date back to

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