移动电话通信通过一个称为基站的固定天线网络发射无线电波。
Mobile phones communicate by transmitting radio waves through a network of fixed antennas called base stations.
旋转关节是把旋转的天线与固定的雷达发射机、接收机互相连接起来的微波元件。
A rotating joint is a microwave element to link the rotating antenna with the fixed transmitter and receiver.
旋转关节是把旋转的天线与固定的雷达发射机、接收机互相连接起来的微波元件。
A rotating joint is a microwave element to link the rotating antenna with the fixed transmitter and receiver.
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