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.
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.
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