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.
灰色关联理论可以很好地处理这种情况下的数据选择。
Grey Relational theory can deal with data selection under this condition.
应用灰色关联理论，探讨原纱性能指标与浆纱质量指标之间的关系。
Introduce the theory of gray incidence. Discuss the relation of performance indexes between the sized yarn and greige yarn.
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