appliance mains switch

例句：

1. 1.The appliance mains switch is located in the kitchen.
   电器主开关位于厨房。
2. 2.We need to replace the appliance mains switch immediately.
   我们需要立即更换电器主开关。
3. 3. The appliance mains switch was damaged during the power outage.
   电器主开关在停电期间受损了。