英语词汇“f1 layer”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	f1 layer
释义	f₁ layer \ˈef\|wən-\ noun Usage: usually capitalized F : the lower and usually less densely ionized of the two layers into which the F region of the ionosphere splits in the daytime occurring at varying heights from about 90 to 150 miles above the earth's surface and being more densely ionized than the E layer
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