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单词
f-region
释义
f-region
汉语翻译
【电】 F区
英语解释:
名词 f-region:
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
同义词:Appleton layer, F layer, F region
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更新时间:2024/11/8 18:57:20