因本建筑为宾馆，故室内排水系统采用单一的粪便排水系统。

Because of this building drain the system the adoption for guest house, past indoors one of excrement drain system.

youdao

因本建筑为宾馆，故室内排水系统采用单一的粪便排水系统。

Because of this building drain the system the adoption for guest house, past indoors one of excrement drain system.

youdao