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单词 parking orbit
释义

WordReference Random House Unabridged Dictionary of American English © 2024
parking or′bit, [Aerospace.]
  1. Aerospacea temporary orbit in which a spacecraft awaits the next phase of its mission.
  • 1955–60

Collins Concise English Dictionary © HarperCollins Publishers::
parking orbit n
  1. an orbit around the earth or moon in which a spacecraft can be placed temporarily in order to prepare for the next step in its programme
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