英语词汇“sunspot cycle”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	sunspot cycle
释义	WordReference Random House Unabridged Dictionary of American English © 2024 sun′spot cy′cle, [Astron.] Astronomythe cycle, averaging in duration slightly more than 11 years, in which the frequency of sunspots varies from a maximum to a minimum and back to a maximum again. Cf. solar cycle.
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