The wave band in each kind of long-distance range ground communication or the radar work, can not apply.
该波段在各种远距离地面通讯或雷达工作中，均不能应用。
From the mode of information transmission, the wireless communication can be classified as long wave, medium wave, shortwave, ultra short wave, and microwave.
无线通信系统按其传播信息的方式，可分为长波、中波、短波、超短波和微波通信方式。
Short wave is radio frequency band earliest utilized by human being, and short wave communication is one modern communication method with a long history.
短波是人类最早开发利用的无线电频段，短波通信是历史最为悠久的现代通信手段之一。
Research on long range radio wave propagation plays a significant role in both mobile communication and electromagnetic environment.
研究电磁波的长距离传播对移动通信和电磁环境研究都具有重要意义。
This system use electric power carrier wave communication chips, the channels between which are changed to telephone lines, to realize the long-distance communication of data.
本系统还运用电力载波通信芯片(将信道改为电话线路)实现了数据远程通信。
This system use electric power carrier wave communication chips, the channels between which are changed to telephone lines, to realize the long-distance communication of data.
本系统还运用电力载波通信芯片(将信道改为电话线路)实现了数据远程通信。
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