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。
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.
为了获得地下水质量的准确结果，采用多种方法进行综合评价会收到良好的效果。
To get a precise result of groundwater environment quality, the application of multiple method is effective.
在对淮南市区浅层地下水进行研究的基础上，应用模糊集理论对本研究区内的浅层地下水水质量进行评价。
Based on the research to the shallow layer water under Huainan city. the fuzzy set theory is applied to the qualitative judgement on the water.
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