根据排水管网设计的实际需要，以可靠性分析理论为依据，提出可以用于排水管网可靠性计算的基础数学模型。
Based on reliability theory, a basic maths model of calculating the reliability of drainage pipe line is recommended for factual need of drainage pipe line design.
结合编制某市市区污水管网系统专业规划，分析和研究了东南沿海地区类似老城区排水管网系统规划与设计需要注意的几个问题。
In compiling a sewer system program in downtown area, the problems deal with the planning and design of sewer network in old township districts in south east seashore area were discussed.
介绍了排水管网水力与高程计算全局优化程序设计的基本思想。
This paper introduces a basic idea of overall optimization of computer programming for sewer system, and a new computer program has been developed.
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