Close the door distribution discharge valve and, if cut-off valve is opened, pumping water to the piston from the pipeline until the pump output.

关闭分配阀卸料门，如有截止阀则打开，泵送清水至活塞从输送管输出端泵出为止。

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Water distribution system is a pipeline network which deliver water from single or multiple supplying sources to consumer.

供水管网是将水从单一或多个水源地输送到用户的管线网络。

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The serious danger caused corrosion of the distribution water pipeline and the reasons of corrosion were analyzed in this paper.

配水系统因内部腐蚀而产生的锈垢对供水水质造成二次污染，增大了供水成本。

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