f layer
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
- 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
点击查看……- 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
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