We can also call it an 'alternator', because it generates alternating current (AC).

我们可以也称之为'发电机'，因为它产生交流电(AC)。

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Alternating current (AC) : Flow of electric charge that reverses periodically, unlike direct current.

交流电：周期性换向的电流，和直流电不一样。

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If you have a fairly reliable and constant, high-volume flow of water then an Alternating Current (AC) supply is a possibility.

如果你有一个相当可靠的水和持续不断的，体积流量然后一交流电流(AC)电源的可能性。

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Inverters and microinverters convert the direct current (DC) power produced by solar panels into alternating current (AC) used in homes and businesses.

FORBES: Solar Microinverter Maker Enphase Gets A Boost In Distribution Deal With Siemens