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单词 celestial mechanics
释义

WordReference Random House Unabridged Dictionary of American English © 2024
celestial mechanics, 
  1. Astronomythe branch of astronomy that deals with the application of the laws of dynamics and Newton's law of gravitation to the motions of heavenly bodies.
  • 1815–25

Collins Concise English Dictionary © HarperCollins Publishers::
celestial mechanics n
  1. the study of the motion of celestial bodies under the influence of gravitational fields
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