英语词汇“Appleton layer”的中英文释义、用法、翻译及短语词组-英汉翻译词典

单词	Appleton layer
释义	Appleton layer 英?[??plt?n ?lei?] 美?[??p?lt?n ?le?] 释义阿普顿层英英释义 Noun 1. the highest region of the ionosphere (from 90 to 600 miles up) that contains the highest concentration of free electrons and is most useful for long-range radio transmission
随便看	head over heels over head head over tip head packing head-page head page headpage Head pain Head Pains headpan head-pan head pange headpange headpans head park Head parking head parts head passing head pendant Head Penetrating Missile Injuries head-penny head-per-track head per track head-per-track disc head per track disk head-per-track disk

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Appleton layer