Mains power
01
主電源, 商用電源
the electricity supply that is distributed to households, businesses, and other facilities through power grids and transmission lines
例
The appliance must be connected to mains power to function.
この機器は動作するために電源に接続する必要があります。
During the storm, the mains power was temporarily cut off.
嵐の間、主電源が一時的に切断されました。
