未来的无线通信系统大到覆盖全球的卫星网，小到个人域网。

The future wireless communication systems will be ranged from global satellite systems to personal area networks.

youdao

未来的无线通信系统大到覆盖全球的卫星网，小到个人域网。

The future wireless communication systems will be ranged from global satellite systems to personal area networks.

youdao