An integrated industrial system has been formed in ( China's ) petroleum refining industry.

我国炼油工业已经形成完整的 工业体系.

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The produce for clean fuel is developed trend of oil refining industry at present.

生产清洁燃料是目前世界炼油工业的发展趋势.

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First of all, the refining industry is inseparable from the environmental protection policy.

首先, 精炼和环保行业密不可分.

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