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单词 Electric power source
释义

Electric power source

原声例句
VOA 常速 2016年8月合集

The Kayoola bus can be recharged using solar power or connected to an electric power source.

不过,Kayoola既可以利用太阳能,也能通过电源充电来获得电能。

英语百科

Electric power

Electric power is transmitted on overhead lines like these, and also on underground high voltage cables.
Animation showing electric load
Animation showing power source
Power triangle: The components of AC power

Electric power is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second.

Electric power is usually produced by electric generators, but can also be supplied by sources such as electric batteries. It is usually supplied to businesses and homes by the electric power industry through an electric power grid. Electric power is usually sold by the kilowatt hour (3.6 MJ) which is the product of power in kilowatts multiplied by running time in hours. Electric utilities measure power using an electricity meter, which keeps a running total of the electric energy delivered to a customer.

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更新时间:2025/6/17 15:19:01