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	snifflingly snifflings sniffly sniff out sniff ... out sniff out something sniff round sniffs sniffs around sniffs at sniff-sniff sniffs out sniff sth out sniff sth/sb out sniff subrating sniff test sniff test letter sniff tests sniff the wind sniff up sniff valve sniffy SNIF (standard neutron irradiation facility) snift snifted

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Appleton layer