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单词 midcourse
释义

WordReference Random House Unabridged Dictionary of American English © 2024
mid•course  (midkôrs′, -kōrs′),USA pronunciation n. 
  1. the middle of a course.
  2. Rocketrythe portion of a ballistic trajectory between the end of powered flight and the beginning of the reentry phase.
  3. Aerospacethe portion of a space trajectory between leaving the earth's vicinity and arrival at the desired destination, as another planet.
  • mid- + course 1555–65

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