urban sewer

Also this method is suitable for urban storm calculation with combined sewer system.

本方法同样适用于合流制城市暴雨的积水计算。

Planning and Design Principles of Separating the Combined Sewer System in Hangzhou Urban Area

杭州市排水系统改制工程规划设计原则的探讨

Transport and Sources of Runoff Pollution from Urban Area with Combined Sewer System

雨、污合流制城区降雨径流污染的迁移转化过程与来源研究

Rapid urban growth means that many sewer systems are already close to overflowing and contaminating our water sources-in Milwaukee, it currently only takes 4.3 centimeters ( 1.7 in) of rain a day for this to happen.

快速的城市发展意味着许多污水管道系统已接近外溢而污染我们的水源——在密尔沃基，现在只需每日4.3厘米（1.7英寸）的降雨量就会发生这件事。