以DRAST IC模型为基础，建立了评价含水层污染性难易程度的模糊分析理论与方法，并将其应用于沧州市区地下水系统脆弱性评价。
Based on the DRASTIC model, the fuzzy analysis theory and method which are suitable for evaluating aquifer vulnerability are established and have been used in Cangzhou City.
进行地下水脆弱性分区评价和水源保护区划分是对含水层进行保护的主要手段。
The main measures of groundwater protection are groundwater vulnerability assessment and wellhead protection area delineation.
地下水脆弱性主要是由含水层中的环境地球化学效应和包气带土壤结构效应共同作用的结果。
Groundwater vulnerability results from the reaction environmental geochemistry effect in aquifer and soil structure in unsaturated zone.
根据长春城区半承压含水层的具体状况，用突变理论进行脆弱性评价。
According to the specific conditions of semi-confined aquifer in the urban area of Changchun City, the catastrophe model was selected for vulnerability assessment.
根据长春城区半承压含水层的具体状况，用突变理论进行脆弱性评价。
According to the specific conditions of semi-confined aquifer in the urban area of Changchun City, the catastrophe model was selected for vulnerability assessment.
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