英语词汇“active sun”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	active sun
释义	WordReference Random House Unabridged Dictionary of American English © 2024 ac′tive sun′, [Astron.] Astronomythe sun at a maximum of solar activity, occurring every 11 years. Astronomysolar activity, superimposed on an unchanging background. Cf. quiet sun, solar cycle. 1975–80
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