英语词汇“f region”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	f region
释义	f region noun Usage: capitalized F Etymology: f (I) + region : the highest region of the ionosphere occurring from 90 to more than 250 miles above the earth's surface and often splitting in the daytime into two layers whose heights vary — see f₁ layer, f₂ layer
随便看	gullery gullet gullet gulleting gulleting file gullet plate gullet worm gulley gull gray gullibility gullible gullibly gulling gullion gullish gulls gull wing gull wing door gully gully gully erosion gullygut gully knife gully-raker gully root

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