Mains electricity

A table lamp connected to a wall socket (the mains)

A 50 Hz ±5 Hz vibrating-reed mains frequency meter for 220 V

Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, mains electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.

单词	Residential power
释义	Residential power 原声例句 CRI在线 2022年1月合集 Residential power consumption saw a 7.3-percent increase. 居民用电量增长 7.3%。英语百科 Mains electricity Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, mains electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.
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Residential power

Mains electricity