The city planner decided to build an underground drainage system.
城市规划师决定建一个地下排水系统。
The excavation technology and design parameters of a polit chamber blasting of underground drainage system in Xiaowan power station are introduced.
介绍了小湾电站右岸地下排水系统的小洞室开挖爆破技术和设计参数。
The whole city drainage system program is as follows: rain water wells road, clay and drain well across the street and drainage inspection wells and underground drainage main lines.
市政整体排水系统程序如下：路面雨水→雨水井→沉泥井→过街排水管→排水检查井→地下排水主干线。
The actual application showed that the system improves safety and reliability of underground drainage.
实际应用表明，该系统提高了煤矿井下排水的安全性和可靠性。
Compared with gravity drainage system, it has the advantages of small pipe diameter and installing space, non-sloped suspended pipe, less sewage connecting and underground pipes and etc.
与重力排水系统相比，具有管径小、管道安装要求空间小、悬吊管无坡度、下水道连接管和埋地管少等优点。
Compared with gravity drainage system, it has the advantages of small pipe diameter and installing space, non-sloped suspended pipe, less sewage connecting and underground pipes and etc.
屋面雨水排水采用虹吸排水系统较重力排水系统，具有管径小、所需管道安装空间小、悬吊管道无坡度、下水道连接管和埋地管少等优点。
The results indicate that the perforated pavement and perforated rainwater drainage pipe system reduce run off and replenish underground water remarkably.
试验结果表明，采用透水铺盖面及渗透式雨水管道系统，对削减径流、补充地下水源有显著效果。
The article discusses the operation safety problems that the sewage pipe is leaked and the underground water source is polluted in the operation of the urban drainage system in Handan City;
该文论述了邯郸城市排水系统运行中存在的污水管道渗漏，污染地下水资源； 汛期道路和下穿立交桥下积水影响交通；
The article discusses the operation safety problems that the sewage pipe is leaked and the underground water source is polluted in the operation of the urban drainage system in Handan City;
该文论述了邯郸城市排水系统运行中存在的污水管道渗漏，污染地下水资源； 汛期道路和下穿立交桥下积水影响交通；
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