Mains power
01
市电, 电网电源
the electricity supply that is distributed to households, businesses, and other facilities through power grids and transmission lines
例子
The appliance must be connected to mains power to function.
该设备必须连接到电源才能运行。
During the storm, the mains power was temporarily cut off.
暴风雨期间，主电源被暂时切断。
