英语词汇“mean planet”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	mean planet
释义	WordReference Random House Unabridged Dictionary of American English © 2024 mean′ plan′et, [Astron.] Astronomya hypothetical planet that coincides with a real planet when the real planet is at perihelion and that moves in an orbit at a constant velocity equal to the mean velocity of the real planet.
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