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.
Of lowermost safety standard is pair of cost - a of benefit analysis method main environmental complement factor.
最低安全标准＂是对成本-效益分析方法的一个重要的环境补充因素。
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The paper presents the method of ie, accords with the application of EE to mould manufacturing, and discusses on promoting efficiency, ensuring quality, reducing cost, man - made factor, and so on.