Appleton layer

• 阿普顿层

Appleton layer的英文翻译是什么意思，词典释义与在线翻译：

英英释义

Noun:

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

Appleton layer的相关资料：

近反义词

【近义词】

• F region F区
• F layer 电离层