1.
Several of these flow into a branch sewer,which joins first a sub-main and then a main sewer taking it to the treatment plant.
这些街道污水管又相结一条污水支管。此支管与次干管连接，然后经主干管将污水送至污水处理厂。
2.
Design for Managing DSS in Water Pollution of Nanning
南宁市水污染管理决策支持系统设计
3.
blow-off branch
放水支管, 排汽支管
4.
Once the pressure of the main network returns to normal, the valve flap of drainage outlet closes under pressure, first, second level check valves open, the main network return to supply water to branch pipeline.
一旦主管网压力恢复正常，排污口阀瓣受压关闭，一二级止回阀打开，主管路恢复向支管供水。
5.
A pipe for carrying off water or sewage.
排水管排水或污水的管子
6.
Water Pollution Control Ordinance Licence
水污染管制条例牌照
7.
Dirt choked the drain.
排水管被污泥堵塞。
8.
a ditch for carrying off excess water or sewage.
运送过剩的污水的管道。
9.
sewerage dredger
(敷设污水管用的)挖沟机
10.
Waste water quality standards for discharging into the combined sewer system
污水排水合流管道的水质标准
11.
Direct Debit Authorisation Form for Payment of Water and Sewage Charges
支付水费及排污费直接付款授权书
12.
Present Conditions of the Tributaries of Jin an Watercourse in Fuzhou and Its Harness and utilization;
福州晋安河支流水体污染现状及治理
13.
unsewered development
未有污水设施的发展区；未铺设污水管的发展区
14.
On Design Plan Selection of Sewage Main Pipe of Combined Sewage Treatment Works
合流制系统污水厂的污水总管设计方案比选
15.
On treatment of medium and small town sewage based on the sewage pipe channel space
利用污水管渠空间处理中小城镇污水的探讨
16.
First you must drain the dirty water out and then clean the pipe.
首先要排出污水，然后你再清洗水管。
17.
a block in the pipe, gutter, drain, etc
阻塞管道、 排水沟、 下水道等的污物
18.
Discussion on Using Drainage Pipeline as the Container of Wastewater Treatment
利用下水道管渠处理城市污水的探讨