这家石油联合企业垄断了这个国家的原油销售。

The oil combine monopolized the fuel sales of the country.

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齐鲁石化公司是中国石化集团公司的直属企业之一，是一家集炼油、乙烯、橡胶、化纤、塑料为一体的特大型石油化工联合企业。

Sinopec Qilu petrochemical Company is one of the subordinate group, as the large petrochemical joint ventures with a set of oil refining, ethylene, rubber, chemical fiber, plastic.

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