...apple juice 苹果汁 | Appleton layer 电离层 | appliance for closing opening 关闭用具...
阿卜吞层(F层)
...appearance point 出现点(流星) | Appleton layer 阿卜吞层(F层) | apse 远近[焦]点;拱点...
Appleton layer 双语例句
The first successful radio range-finding experiment occurred in 1924, when the British physicist Sir Edward Victor Appleton used radio echoes to determine the height of the ionosphere, an ionized layer of the upper atmosphere that reflects longer radio waves.