Theories of quality cost management are expounded. A calculating method to determine the optimum values of quality cost and the assessment of quality cost economic results are explored.
本文论述了质量成本管理理论，探讨了质量成本最佳值的求法和质量成本管理经济效益评价。
To ensure the voltage quality and the economic operation a design method for planning reactive power compensation in UHV network with optimum reactive power flow is presented in this paper.
本文提出了用最优无功潮流法规划超高压电网感性无功功率补偿设计的方法，这是保证电网电压质量和经济运行的前提。
Orthogonality method was adopted to make the trial plan and the optimum blasting parameters derived which have achieved obvious economic and social benefits.
同时运用正交法设计了试验方案，并获得了最优爆破参数，取得显著的经济效益和社会效益。
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