The stink leaking-preventing device used at the inlet of a sewage pipe can be used for the sewage pool in a kitchen, the urinal in a toilet, and the ingresses of other industrial wastewater pools.
这种防臭装置于厨房污水池、卫生间大、小便池及其他工业废水池的入口处。
2
The results showed that PVC-U pipe can fully meet the requirements of wastewater treatment and reduce the construction costs greatly.
结果表明：PVC-U管材完全满足污水处理的要求，并可降低工程造价。
3
City's main sewage pipe network for the collection and distribution of life in the urban areas of sewage and wastewater, sewage accounted for a large proportion.