The index system falls into four basic parts: object level, system level, factor level and indicator level.

评价指标体系包括四个基本层次结构：目标层、系统层、因素层和指标层。

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The index system falls into four basic parts: object level, system level, factor level and indicator level.

评价指标体系包括四个基本层次结构：目标层、系统层、因素层和指标层。

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