Petroleum refining is the separation of petroleum into fractions and the subsequent treating of these fractions to make them into petroleum products.

石油炼制即将石油分离成各种馏分，然后将这些馏分经过处理，制成各种石油产品。

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Petroleum asphalt is produced by the refining of petroleum.

石油沥青是通过石油精炼得到。

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Thoroughly revised and expanded by 50%, this edition of this handbook offers petroleum and chemical engineers a comprehensive guide to all aspects of petroleum refining processes.

完全修正并且扩大50%，这本手册的这版给石油和化学工程师提供全面的石油精炼过程的各方面指南。

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Like the House version,the Senate measure would amend the 1996 Iran Sanctions Act to allow the president to sanction foreign companies involved in enabling the shipment of gasoline and other refined petroleum products to Iran, or helping to maintain its existing refining capacity.

VOA: standard.2009.04.28

Chemical manufacturing, petroleum refining, pulp and paper and iron and steel manufacturing dominate industrial energy use.

FORBES: The Case for A Federal Cogeneration Standard

Petroleum refining, tourism and offshore finance were the mainstays of the islands' economies.

BBC: Curacao profile

Industrial activity is predominantly in food processing, chemicals, petroleum refining, and electrical machinery.

FORBES: Netherlands