翻译
  • 简明
  • F layer

    • 英 [ef ˈleiə]
    • 美 [ef ˈleɚ]

    释义

    • n.
      电离层,(电)电离层
  • 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