High efficiency and high power factor are characteristic of rare earth and permanent magnetism and synchronous motor. lt is a energy saving product.
稀土永磁同步电动机具有效率高、功率因数高的特点，是一种高效节能产品。
This paper describes the efficiency, power factor and other parameter features of the synchronous electric motor.
本文介绍了异步电动机的效率、功率因数和其他参数的特性。
Using magnetic sleeve can raise not only motor's efficiency and power factor but also the motor's torque.
而用磁性套筒改造电动机，不但可以提高电动机的效率、功率因数，而且其转矩比改造前也有所提高。
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