微波由于比一般无限电波的频率高，因此，通常用于发送成千上万的电话信号和长距离电视节目。

Microwaves, which have a higher frequency than ordinary radio waves, are used routinely in sending thousands of telephone calls and television programs across long distances.

youdao

微波由于比一般无限电波的频率高，因此，通常用于发送成千上万的电话信号和长距离电视节目。

Microwaves, which have a higher frequency than ordinary radio waves, are used routinely in sending thousands of telephone calls and television programs across long distances.

youdao