alternating current

This is an alternating current generator.

这是一台发电机。

The electro-magnetic microgenerator utilizes a moving magnet or coil for inducing an alternating electric current in a circuit.

微型电磁发电器以移动中的磁铁或线圈，在电路中制造感应电。

The result shows that CJD alternating current electrodynamometer has simple structure and the energy feedback efficiency can reach 74%, with outstanding energy-saving effect, good control stability.

运行结果表明，该CJD电力测功机控制能稳定，可靠好，节能效果显著，能量反馈效率最高可达到74%。