In the whole production process of oil exploration exploitation, there is a type of severe contamination environmental substance to coupled with petroleum together withdrawn oily sludge.
在整个石油勘探开发过程中，伴随着石油一同采出的含油污泥是一种严重污染环境的物质。
In the whole production process of oil exploration exploitation, there is a type of severe contamination environmental substance to coupled with petroleum together withdrawn oily sludge.
在整个石油勘探开发过程中，伴随着石油一同采出的含油污泥是一种严重污染环境的物质。
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