英语词汇“tangential motion”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	tangential motion
释义	WordReference Random House Unabridged Dictionary of American English © 2024 tangen′tial mo′tion, [Astron.] Astronomythe component of the linear motion of a star with respect to the sun, measured along a line perpendicular to its line of sight and expressed in miles or kilometers per second. Also called tangen′tial veloc′ity. Cf. proper motion, radial motion. 1760–70
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