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单词 flyby
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WordReference Random House Learner's Dictionary of American English © 2024
fly•by or fly-by /ˈflaɪˌbaɪ/USA pronunciation   n. [countable], pl. -bys. 
  1. Aeronautics, Aerospacethe flight of a spacecraft past a heavenly body.

WordReference Random House Unabridged Dictionary of American English © 2024
fly•by  (flī′bī′),USA pronunciation n., pl. -bys. 
  1. Aeronautics, Aerospacethe flight of a spacecraft close enough to a celestial object, as a planet, to gather scientific data.
  2. Aeronautics
    • Also called flypast. a low-altitude flight of an aircraft for the benefit of ground observers.
    • flyover (def. 1).
Also, fly′-by′. 
  • noun, nominal use of verb, verbal phrase fly by 1950–55, American.

Collins Concise English Dictionary © HarperCollins Publishers::
flyby /ˈflaɪˌbaɪ/ n ( pl -bys)
  1. a flight past a particular position or target, esp the close approach of a spacecraft to a planet or satellite for investigation of conditions
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更新时间：2024/9/20 12:27:29