Based on the grey system theory, a grey assessment model of groundwater quality is built by combining the method of grey relational grade analysis and the method of single factor contaminant index.
以灰色系统理论为基础，把灰色关联度分析方法和单因子污染指数法相结合，构造了一种适合于评价地下水质量的灰色模型。
In the Fuzzy Synthetic Safety assessment, the initial soft classification is the basis of establishing single factor assessment matrix.
初始软划分是模糊综合安全评价中确定单因素评价矩阵的基础。
The water quality of Qingjiang River in Hubei is analyzed systemically based on the monitoring data from 1995 to 2006 with single - factor assessment method.
通过采用单因子评价手段，选取1995～2006年实地监测数据，系统分析了清江长阳段水质状况。
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