Petroleum



GRE TOEFL 考研

解释

GRE 红宝书

• n. 石油
• ［英］ n. 石油 ( a mineral oil)
• ［类］ refinery : petroleum / mill : grain ( 炼油厂加工石油 / 磨房加工谷物)

Webster Collegiate

noun

• Etymology: Middle English, from Medieval Latin, from Latin petr- + oleum oil — more at oil
• Date: 15th century
• an oily flammable bituminous liquid that may vary from almost colorless to black, occurs in many places in the upper strata of the earth, is a complex mixture of hydrocarbons with small amounts of other substances, and is prepared for use as gasoline, naphtha, or other products by various refining processes

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