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f layer    我要挑错精准翻译

参考词典中f layer的常规释义:

基本释义
  • n.电离层 n.[电]电离层
英英解释
  •  1个名词解释

    1. 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
      [同] f layer, f region, appleton layer
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