effluentoiltreatment

例句：

1. 1. The effluent oil treatment plant is located in the city center.
   这个废水处理厂位于市中心。
2. 2. The oil treatment process involves removing impurities from crude oil.
   石油处理过程涉及从原油中去除杂质。
3. 3. The wastewater treatment plant has been improving its efficiency over the years.
   多年来，这个废水处理厂一直在提高其效率。