因此进行城市管网规划设计的研究具有重大的实际意义。
So it is very important to study the optimum design of city natural gas pipeline network system.
论述了大管径供热管道直埋施工，在城市管网改造中的施工方法和质量控制。
This paper expounds the direct embed construction of heat input pipe with big diameter, and its constructing method and quality control in the rebuilding of urban pipe network as well.
供水管网是城市建设的生命线，城市管网的管理是城市规划和城市建设的重要环节。
Water-supply pipe network is the lifeblood of urban construction, the management of city pipe network is the essential part in urban planning and urban construction.
以上研究为城市管网的漏损评价提出了一种实际可行的方法，也为供水企业进行漏损控制提供了一个新的思路。
Above study presented a practical method for the leakage of sewer evaluation, and provided a train of thought for controlling leakage of water supply enterprises.
甚至在华盛顿特区当有要求想把未来五年的水价提高一倍以便帮助这个城市来筹款去维护她那个用了76年的已经到处渗漏的总管网络时，出现了公开反对的响音。
Even in Washington DC there has been an outcry over calls for prices to double over the next five years to help the city raise money to spend on its 76-year-old network of leaking lead pipes.
该系统从应用角度为城市地下管网的管理和服务提供了一个可行的解决方案。
This system offers a feasible solution to city pipe net management and service from application point of view.
推进地下管网等城市基础设施建设。
Underground pipe networks and other urban infrastructure were improved.
且市政给排水工程的管网架设在地下，一旦出现问题，会给城市正常的生产和生活带来严重的影响。
And municipal water supply and drainage pipe is erected on the ground, if there are problems, will give the city the normal production and life bring serious effect.
介绍了利用SCADA技术实现城市燃气管网监控、调度管理自动化的解决方案及系统主要功能。
The SCADA technique which is used in the solution of urban gas network's control and scheduling management automation and system main functions is introduced.
详细分析了余氯指标的评价标准，并以某城市供水管网为例研究了余氯的模糊评价方法。
The evaluation criteria for residual chlorine were analyzed in detail, and the fuzzy evaluation method was discussed taking for an urban water supply network as an example.
城市给水管网是城市重要的基础设施之一，给水管网事故直接威胁着城市公共安全。
Water network is one of the important infrastructures in city, and its emergency directly threatens urban public safety.
其用户包括了城市燃气用户、工业用户、电厂用户和区域管网公司等类型的用户。
The consumers included fuel gas user in town, industrial user, electrical power user and pipeline network company in some areas etc.
本论文力求找到一套可行的方法来解决城市集中供热管网的布局优化和参数优化这一类通用问题。
This thesis makes every effort to find a feasible method to solve the problem of the heating pipe network while the overall arrangement optimizing and the parameter optimizing.
建立供水管网试验模型的目的是便于研究真实城市供水管网中管流的水力特性和水质情况。
The objective of developing an experimental model of the water distribution network is to study the hydraulic properties and water quality of the actual network.
并选择节点余氯为状态变量，通过EPANET的水质分析功能，对某城市给水管网进行模拟计算。
Choose node residual chlorine as state variable; simulate a certain citys water supply pipe network by EPANET s function of water quality analyses.
城市布局的调整和城市下水道管网的建设与完善。
Adjustment of the layout of cities and urban sewage pipe network construction and improvement.
介绍了城市地下管网图纸自动输入及识别系统。
This paper introduces an automatic input system of the city underground pipeline drawing.
总结工程的几点经验可供老城市污水管网改造工程参考。
Some experience summarized should be applied reference for the reconstruction projects of old city sewage pipe net.
详细阐述了指数评价法和模糊综合评审在城市燃气管网风险评价中的应用过程。
The application process that index risk assessment and the fuzzy comprehensive assessment method are applied to safe management of city gas pipeline is given.
系统界面友好、操作简便、功能齐全，是进行城市供水管网科学化管理的强有力工具。
This system has a friendly interface, simple manipulated and complete functions; it is a powerful instrument for the scientific management of city water supply pipe web.
利用GIS技术管理城市综合管网是提高城市建设效率的有效手段。
Using GIS technology to manage the urban synthesis pipelines network is an effective method to improve the efficiency of city construction.
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.
详细介绍了图论法、动态规划法、神经网络法、MCST法和约束导数法等在城市天然气管网规划中的应用。
The application of graph theory, dynamic programming, neural networks, MCST method, constrained derivatives, etc. to pipe network programming were recommended in details.
在分析城市污水管网结构的基础上，运用递归计算方法，建立了设计流量计算模型。
Based on analysis of urban sewage systems structure, a designed discharge computation model is presented by using recursive algorithm.
而在城市供水管网事故状态下的管理与调度决策的研究则处于比较落后的状态。
However, the study on management and control decision of breakdown state of city water supply network falls behind.
对城市供水管网震后各阶段的服务功能可靠性进行了分析。
The serviceability of water delivery network in each phase under earthquake is analyzed by simulation method and hydraulics theory.
我国城市的地下管网系统，大多数没有经过正规的抗震设计，而不少大、中城市又有着可能遭受中强地震影响的背景。
Most of lifeline network systems in Chinese cities have not been passed through normal aseismic design, but many big and medium cities may be have the seismic risk background.
污水管网系统节点流量模拟计算是城市污水管网系统规划设计和运行管理的基础性工作。
The simulated calculation of nodal flow in sewage pipe network system is the essential work for the planning design and operation management of the urban sewage pipe network system.
以辽宁省为例，探讨了我国城市老燃气管网改造的必要性、存在的问题及改造措施。
Taking Liaoning Province for example, the necessity for reconstruction of municipal old gas network in China, the existing problems and the reconstruction measures are discussed.
未取得城市排水许可证书，排水户不得向城市排水管网及其附属设施排放污水。
No drainage entity may drain sewage into the urban drainage pipe network and its accessory facilities if it fails to obtain an urban drainage license.
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