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    appleton layer

    appleton layer - 365bet中国官方网站 definition and meaning for word appleton layer

    Definition
    (noun) 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
    Synonyms : f layer , f region

  • Word used in video below:
    text: FIRST, THERE'S A LAYER OF LADYFINGERS
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