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为了探求改水降低饮水含氟量防治氟病的效果,我们对本县白埠公社已改水四十多年的傅家庄大队和未改水的陈家屋子大队的氟病发病情况进行了调查。
In order to find out the effect of changing water to reduce fluoride content in drinking water, we investigated the incidence of fluorine disease in Fuji Zhuang Battalion and Chen Family House Brigade that had not changed its water in Baibu commune of this county for more than 40 years.