dual transmitter

例句：

1. 1. The dualtransmitter in the control room is responsible for monitoring and controlling the entire system.
   控制室里的双发射器负责监控和控制整个系统。
2. 2. The dual transmitter ensures that the signal can be transmitted over both radio and television frequencies.
   双发射器确保信号可以通过无线电和电视频率进行传输。
3. 3.The dual transmitter has a high sensitivity and can detect signals from far away.
   双发射器具有高灵敏度，可以检测到远处的信号。