The analysis and calculation were also made by the correlation method of Grey system theory.
并运用灰色系统理论的关联度分析方法进行了分析和计算。
The effect extent of soil property for wheat yield was analyzed by using correlation analysis, grey associate analysis and rough sets theory.
运用简单相关、灰色关联分析方法和粗糙集理论，分析了土壤特性对小麦籽粒产量的影响。
Based on grey system theory, a weighted grey correlation model is built, the composite efficiency of mechanical equipments is evaluated to supply a reference for equipment optimization.
以灰色系统理论为基础，建立加权灰关联分析模型，对机械设备进行综合效益评价，为设备选优提供决策依据。
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