main switch

• 总开关

main switch的用法和样例：

例句

1. The rheostat is operated by rotating the control knob, separating it from the push-pull action of the main lighting switch.
   可变电阻器由旋转的控制手柄操纵，与灯光总开关的推一拉的操纵是分开的。
2. I got to turn the main power switch back on.
   我得去把主开关打开。
3. All rooms are linked to the main switchboard.
   所有的房间都与主开关连接。