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给水管网,特别是铸铁管、冷镀锌钢管一旦发生二次污染将给治理上带来更多的投资和麻烦。本文介绍了输配水管网对水质的二次污染的产生及防治。
Water supply network, especially cast iron pipes and cold galvanized steel pipes, will cause more investment and troubles in governance once secondary pollution occurs. This paper introduces the generation and prevention of secondary pollution of water quality by transmission and distribution network.