As the report points out, many of them rely on water freelancers—laying pipes, drilling wells, or trucking water—who sell water to people unserved by public utilities.
报告指出，大多数穷人依赖做水生意的人，他们给没有公共供水的用户服务，象自己架管子、钻井、或用卡车运水。
"One Network": improving the laying of underground sewage disposal pipes so as gradually to achieve "one network for one city".
“一网”完善地下排污管网的铺设，逐步形成“一城一网”。
This paper introduces the laying principles and ways of having compensation no secondary fixed support mound preinsulated district heating pipes.
介绍了有补偿无次固定支座直埋热力管道的敷设原理与方法。
The excavation technique consists of main operations including breaking, loading, haulage and support, and auxiliary work including ventilation, laying the track, digging ditches and laying pipes etc.
掘进工艺包括主要作业和辅助作业，其中主要作业包括破岩、装岩、运输、支护，辅助作业包括通风、铺设轨道、挖掘排水沟、铺设管线等等。
Valve structure that is buried, extended stem structure, making it suitable for laying of underground pipes installed in places.
球阀埋地结构即，加长阀杆结构，使其适用于管线埋地铺设安装的场所。
The installation, use and design and laying of circuit and pipes must conform to relevant technical regulations on fire control.
对消防工作，应当加强科学研究，推广、使用先进消防技术、消防设备。
The installation, use and design and laying of circuit and pipes must conform to relevant technical regulations on fire control.
对消防工作，应当加强科学研究，推广、使用先进消防技术、消防设备。
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