规定公司经济性度量质量体系有效性的范围和方法，确保通过质量成本分析来改进质量，进而达到提高经济效益。

Provisions of company economic measure the effectiveness of the quality management system and method, ensure the quality cost analysis to improve quality, and to improve economic benefit.

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然后扩展分析银行模拟利润考核的有效性和模拟利润成本之间的权衡以及模拟利润的最优精确水平；

Secondly, it analyzes the tradeoff between the availability of the simulation profit check system and cost of the simulation profit, and calculates the accuracy level of the simulation profit.

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通过价值链分析确定增值作业，建立各种体系，以此来保证煤矿成本控制系统的有效性。

By analyzing the value chain to ascertain increment task to construct system of many kinds in order to assure system's validity.

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