采用一维非恒定流方程模拟地下排水管网内的水流，并给出泵站、闸门、淹没出流管道等排水系统的处理方法。
The flow in the drainage pipe network is simulated by one-dimensional unsteady flow theory, and the calculation of the pumping stations, the water gates and submersed pipes is indicated.
本文对管道直饮水系统中用水标准、水处理工艺、供水管网、管材选用等问题进行了分析比较。
Analyses and compares water standard, water treatment process, water supply piping line, system, pipe materials and other problems in the piping drinking water system.
为了充分利用现有的管道及设备，本文还对西北缘输配气管网系统的输气能力进行了研究。
The capacity of the gas transportation pipeline network system was also studied so as to utilize all the existing pipeline and equipment fully in this dissertation.
城市废水管网系统中臭气的最常见的发生源主要有下水道总管道和泵站。
The most common emergence of odour comes from the Urban sewage system, mainly in the total pipelines and equipment for treatment.
为了切实的保护好电信的通信管道和通信线路，一套完整而且功能强大的通讯管网管理系统就应运而生了——通信人井监控报警系统。
In order to protect them, it is necessary to build a set of powerful and complete Manage System for telecom pipe net.
室内消火栓系统给水管道有枝状管网和环状管网两种形式。
Indoor water supply pipeline fire hydrant system has two forms: branched network and ranged network.
应用上述模型，可进行机压管道式喷灌系统配水干管管网的优化计算，可确定水泵最优扬程及干管各管段尺寸最优值，以使干管管网系统年费用值达最小。
With the model, the design of sprinkler pipeline network can be optimized, the optimal lift head and pipe size were determined, and the annual operational cost was minimized.
应用上述模型，可进行机压管道式喷灌系统配水干管管网的优化计算，可确定水泵最优扬程及干管各管段尺寸最优值，以使干管管网系统年费用值达最小。
With the model, the design of sprinkler pipeline network can be optimized, the optimal lift head and pipe size were determined, and the annual operational cost was minimized.
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