《Table 2 Statistics of Groundwater Hydrochemical Types in Danyang City(Schukarev classification,unit

《Table 2 Statistics of Groundwater Hydrochemical Types in Danyang City(Schukarev classification,unit   提示:宽带有限、当前游客访问压缩模式
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《新型小城镇地质环境综合调查服务——以江苏丹阳2016年数据集为例》


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Method for the assessment of groundwater quality:Single-index-based,index-categorybased,and comprehensive assessments were adopted.The principle that a qualified value prevails was held in the single-index-based assessment.However,the principle that an unqualified value prevails was held in the index-category-based assessment and comprehensive assessment(i.e.,a category of indices or comprehensive quality was unqualified once an unqualified index value occurs).