为改善起动特性，还对双鼠笼转子的计算进行了推导，分析了整马力单相步电动机的起动过程。
In order to improve its starting performance, we derivated the calculating method of this kind of motor with double cage rotor and analysed its starting process.
伊利起动了他的五十马力引擎，开始从跑道上下滑。
Ely raced his 50 horsepower engine and started to roll down the ramp .
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