供水管网的建设应该从设计、施工到竣工进行系统化、全方位管理，充分进行技术经济分析、评价，加强事前、事中、事后工程造价监督控制，使工程造价更加合理。%The construction of water supply network should be under systematic and comprehensive management from design, construction to completion. It should be analyzed and evaluated from technology and economy. The supervisory control of the project costs should be strengthened in advance, matter and afterwards to make the project costs more reasonable.
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