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单词 launch window
释义

WordReference Random House Unabridged Dictionary of American English © 2024
launch win′dow, 
  1. Aerospacea precise time period during which a spacecraft can be launched from a particular site in order to achieve a desired mission, as a rendezvous with another spacecraft. Also called window. 
  • 1960–65

Collins Concise English Dictionary © HarperCollins Publishers::
launch window n
  1. the limited period during which a spacecraft can be launched on a particular mission
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