oily water separator

例句：

1. 1. Theoil-water separator is used to separate the oil from the water in the oil field.
   油水分离器用于油田中将油与水分离。
2. 2.The new oil-water separator has a more efficient design than the old one.
   新型油水分离器的设计比旧型更高效。
3. 3.The oil-water separator is an essential tool for preventing environmental pollution in the oil industry.
   油水分离器是石油工业防止环境污染的必备工具。