By analyzing transmission pathway and mode of VLF radio wave, calculation formula of field intensity is given.

分析甚低频电磁波传播路径与方式，给出场强的计算公式。

youdao

By analyzing transmission pathway and mode of VLF radio wave, calculation formula of field intensity is given.

分析甚低频电磁波传播路径与方式，给出场强的计算公式。

youdao