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吉林省乾安县1965年开始打深井降低饮水含氟量预防地氟病。1980年开始对全县防氟井在平水期进行连年监测。现对100眼防氟井5～12年的水氟监测结果分析如下。
Beginning in 1965, Qian’an County, Jilin Province, started to drill deep and reduce the amount of fluorine in drinking water to prevent fluoride disease. Beginning in 1980, the county anti-fluorine wells in the flat water for years of monitoring. Now 100 anti-fluoride wells 5 to 12 years of water fluoride monitoring results are as follows.