It especially emphasize the importance of hidden quality cost and have a detailed research.

重点强调了隐含质量成本的重要性，并对其进行了重要研究。

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Established quality cost model identifies that quality cost are composed of intuitionistic quality cost and hidden quality cost.

建立的质量成本模型中，质量成本由直观质量成本和隐含质量成本两部分组成。

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