The ego effect is a strong power in the behaviors and operations of mankind. It has very important function in the control and regulation of behaviors.

自我效能是人类行为操作活动的一种强大力量，在控制和调节行为方面有着极其重要的作用。

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Speed regulation system using cascade control method with thyristor is a low-cost system, but the classic system has some shortages, such as low power factor, serious harmonic pollution and etc.

晶闸管串级调速系统是一种廉价、简易的调速系统，但是传统串调系统存在着诸如功率因数低、谐波污染严重等弊端。

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To maintain both the voltage and the frequency within limits requires fine power control and load regulation.

既要保持电压而在限制范围内的频率，需要良好的功率控制和负载调节。

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That means greater access to and increased use of traditional energy resources, not policies that impose costly command-and-control regulation on the use of fossil fuels, or nuclear power, or whatever energy source happens to be out of style in Washington that week.

FORBES: Has U.S. Energy Policy Killed Green Scene? Survey Says, Yes!