The underground pipeline cross interference of city road is an important factor which constrains the whole urban pipeline engineering construction.
城市道路地下管线交叉冲突，是制约整个城市管线工程建设的重要因素。
Applying the measuring principle of the trigonometric leveling with total station into the construction of urban pipeline engineering can replace the traditional geometric leveling method.
把全站仪三角高程的测量原理运用到城市管道工程的建设中，可以代替传统的用几何水准测量高程的方法。
This paper presents a system scheme for Urban Pipeline Network information System. Extended relation database is used to store and manage the attributes and graphic information of pipelines.
提出了城镇管网信息系统的总体设计与实现方案．该系统使用广义关系数据库存储和管理各类管线的属性信息和管线的图形信息；
Pipeline valves in a variety of urban architecture also substantial growth in demand.
城市建筑中各种阀门管道的需求也大幅度增长。
Franchising business is gas pipeline construction in the planning area to reach gas, urban heating gas reserves and to promote the development and application in gas vehicle refilling.
特许经营的业务为在规划区内燃气管道工程建设，达到燃气城市供暖。供气及燃气的储备。充装燃气汽车加气的开发与应用。
Typical urban public utilities provide mix goods from productive spots to specific consumers through pipeline network transmission system.
典型的城市公用事业通过管道网络传输系统，从生产地向特定的消费点提供混合商品。
The dynamic increase, alteration and disuse of urban underground pipeline information result in the difficulty and complexity of its management and development.
城市地下管线信息的动态增加、变更、废弃等导致了地下管线信息管理与信息系统开发的复杂性与难度。
The concept of a digital urban steam pipeline is reviewed.
本文阐述城市蒸汽管道数字系统框架。
Present corrosion protection method for urban buried pipeline is commonly adopting external corrosion protection combined with cathodic protection.
目前对城市埋地管道的防腐采用外防腐层加阴极保护的方法。
Therefore, we need for a unified visualization of urban underground pipeline information management system to address the above issues.
因此需要建立一个统一的城市地下管线可视化信息管理系统来解决上述问题。
The factors affecting the safety of urban gas pipeline are analyzed and evaluated systematically.
结合未确知测度模型，对影响城市燃气管道安全的因素进行系统的分析与评价。
Nowadays urban underground pipeline detection has been more and more important.
城市地下管线探测越来越重要。
Has been included in urban and rural planning pipeline construction land shall not arbitrarily change the use of.
已纳入城乡规划的管线建设用地，不得擅自改变用途。
Urban and rural drinking water pipeline.
城乡饮用水管道。
Urban rainwater collection can realize water resource conservation, decrease pressure of drainage pipeline and improve urban ecological environment etc.
城市雨水收集可实现水资源涵养、降低排水管道的压力和改善城市生态环境等目标。
Developes emergency repairing decision support system software frame of urban gas pipeline accident according to previous research results and the relevant models by the use of VB6.0.
根据前面得到的研究成果和相关模型，利用VB 6.0构建起了城市燃气管网事故应急抢修决策支持系统的软件框架。
As the rapid process of city infrastructure construction and urbanization, how to protect the safe operation of urban drainage pipeline network is an urgent problem.
随着我国城市化进程和城市基础设施建设的加快，如何保障城市排水管网的运行安全是急需解决的问题。
As the rapid process of city infrastructure construction and urbanization, how to protect the safe operation of urban drainage pipeline network is an urgent problem.
随着我国城市化进程和城市基础设施建设的加快，如何保障城市排水管网的运行安全是急需解决的问题。
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