urban sewer networks的意思|示意

We will accelerate the planning and building of sewer networks and garbage disposal facilities in urban areas and expand the use of recycled water.

加快城镇污水管网、垃圾处理设施的规划和建设，推广污水处理回用。

In order to undertake the hydraulic analysis of urban sanitary sewer networks, the stochastic simulation of the nodal flow series is conducted in the paper.

为了进行城市污水管网系统的水力分析，对管网节点流量过程进行了随机模拟。