雨水管道应按设计规定的位置安装，悬吊管不设坡度、要水平安装。
Stormwater pipeline design requirements should be the location of installation, suspension control is no slope to the level of the installation.
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。
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。
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.
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