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饮水硬度与健康,尤其是与心血管系统疾病的关系,是目前国内外人们普遍关心的一个问题。我市于1983年9月对我地区饮用软水的丰南县杨贵庄村和饮用中硬水的迁西县
Drinking water hardness and health, especially with the cardiovascular system diseases, is currently a problem of widespread concern at home and abroad. My city in September 1983 to drink soft water in my area Fengnan Yangguizhuang village and drinking in hard water Qianxi