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本文综合运用灰色系统理论对黄石市地下水水质进行预测和评价。即采用GM（1．1）预测模型对地下水水质进行灰色预测；再通过灰色关联分析对预测结果作综合评价。该方法使用简单，结果合理。
In this paper, the gray system theory is used to predict and evaluate the groundwater quality in Huangshi City. That is to say, GM (1.1) prediction model is used to predict the groundwater quality. Then the gray correlation analysis is used to evaluate the prediction results. The method is easy to use and the result is reasonable.