receiver-transmitter switch

例句：

1. 1. The switch controls the flow of electricity in our house.
   这个开关控制着我们家的电力流动。
2. 2. The engineer used a receiver-transmitter switch to monitor the signal strength.
   工程师使用一个接收器-发射机开关来监测信号强度。
3. 3. The switch is essential for ensuring that the power goes through the right circuits.
   这个开关对于确保电力通过正确的电路至关重要。