英语词汇“Appleton 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	Appleton layer
释义	Appleton layer (once / 11819311 pages) n WORD FAMILY Appleton layer n the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission Syn\|Exp F layer, F region part, region the extended spatial location of something
随便看	petty apartheid petty bourgeoisie petty cash petty criticism petty juror petty jury petty larceny petty morel petty officer petty spurge petty whin petulance petulant petulantly petunia Petunia axillaris Petunia hybrida Petunia integrifolia Peul pew pewee pewit pewit gull pewter Peyer's patch

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