阐述了污水收集系统的规划原则和本区管网布置特点。

The planning principles of the sewage collection system and the characteristics of sewer network layout are also introduced.

youdao

阐述了污水收集系统的规划原则和本区管网布置特点。

The planning principles of the sewage collection system and the characteristics of sewer network layout are also introduced.

youdao