plugging switch

例句：

1. 1. The new laptop has a plugging switch that makes it easy to connect and disconnect from the power source.
   这款新笔记本电脑有一个插头开关，使得从电源源连接和断开变得非常容易。
2. 2.The old car had a plugging switch on the dashboard that controlled the engine's start and stop.
   旧汽车的仪表板上有一个插头开关，可以控制发动机的启动和停止。
3. 3. The engineer used a plugging switch to test the circuitry of the new device.
   工程师使用一个插头开关来测试新设备的电路。