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kai feng tong zhuang shui chao 15 tian bie he
Pages: 61-61
Year: Issue:  10
Journal: Enterprise Standardization

Abstract: 如今,很多家庭都用上了饮水机,但饮水机"二次污染"问题也让人烦恼。饮水机的清洗消毒一般以夏季3个月1次、冬季半年1次为最佳。开封过的桶装水放置超过15天,就不能再饮用了。
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