未知背景的灰色体系的定量分析通常需要二维数据。
The two-way data is usually necessary for the quantitative analysis of the gray system.
利用灰色关联理论，建立财务分析指标评价体系。
Grey relevant theory is used and appraising system of financial analysis index is set up.
利用灰色关联理论，建立财务分析指标评价体系。
Grey relevant theory is used and appraising system of financial analysis index is set up.
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