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2013-05-23 12:21
求翻译:Petroleum: crude oil that occurs naturally in sedimentary rocks and consists mainly of hydrocarbons. A wide variety of commercially important petrochemicals, such as gasoline and kerosene are derived from it.是什么意思? 待解决
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Petroleum: crude oil that occurs naturally in sedimentary rocks and consists mainly of hydrocarbons. A wide variety of commercially important petrochemicals, such as gasoline and kerosene are derived from it.
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