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.
地下水脆弱性评价方法主要有三类：迭置指数法，过程数学模拟法和统计方法。
There are three major classes of groundwater vulnerability assessment methods: overlay and index methods, methods employing process-based simulation models and statistical methods.
据综合污染指数计算分析，洞庭湖区域浅层地下水分为重度、中度、轻度和非污染4个等级。
Based on the calculation and analysis of comprehensive index-polluted, shallow-seated groundwater in Dongtinghu district can be divided into 4 classes of serious, middle, lower and no pollution.
将改进的尼梅罗指数法应用于磐石市地下水环境质量评价，结果表明改进的方法更客观、合理。
The application of the improved Nemerow index method to the evaluation of the groundwater quality in Panshi City shows more objective and logical results.
本文讨论了季节性指数平滑法在地下水位预报中的应用。
Application of seasonal exponential smoothing method to groundwater level prediction is discussed herein.
饱和指数表明，地下水中石膏和硬石膏呈非饱和状态，而方解石、霰石呈过饱和状态。
The SI data showed that gypsum and anhydrite we re in an unsaturated state, but calcite, aragonite and dolomite were in a super- saturated state in the groundwater.
采用单项指标法和综合污染指数法两种方法对娘子关泉域地下水污染现状进行了水质评价。
The ground water quality of Niangziguan Karst spring is evaluated by comprehensive index method and single index method.
该方法既克服了依靠某年监测值对地下水质的静态空间评价，又可将超标率、污染指数和超标面积综合起来，完成地下水水质的动态评价。
The method not only can overcome static-space evaluation of groundwater quality depending on monitoring value in certain year, but also sum up standard excess rate, pollution ind…
该方法既克服了依靠某年监测值对地下水质的静态空间评价，又可将超标率、污染指数和超标面积综合起来，完成地下水水质的动态评价。
The method not only can overcome static-space evaluation of groundwater quality depending on monitoring value in certain year, but also sum up standard excess rate, pollution ind…
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