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从研究区现有水井取水样１９件。通过水样的化学分析和地质资料研究了以下一些问题：①生活有机质的降解；②铝硅酸盐矿物的溶解；③来自河水的补给；④氟含量和氟石（ＣａＦ２）溶解度控制有关；⑤重金属的变化
19 samples were taken from the existing wells in the study area. The following problems have been studied through the chemical analysis and geological data of water samples: (1) the degradation of living organic matter; (2) the dissolution of aluminosilicate minerals; (3) the recharge from river water; (4) the fluorine content is related to the solubility control of CaF2; Heavy metal changes