| 释义 |
〔petroleum〕A thick, flammable, yellow-to-black mixture of gaseous, liquid, and solid hydrocarbons that occurs naturally beneath the earth's surface, can be separated into fractions including natural gas, gasoline, naphtha, kerosene, fuel and lubricating oils, paraffin wax, and asphalt and is used as raw material for a wide variety of derivative products.石油：一种粘稠易燃的、颜色从黄到黑的汽体、液体和固态碳氢化合物的混合物，天然存在于地表之下，可以分离成多种成份，包括天然气、汽油、挥发油、煤油、燃料和润滑油、石蜡和沥青，作为原材料广泛地用于各种各样衍生产品中〔methane〕An odorless, colorless, flammable gas, CH4, the major constituent of natural gas, that is used as a fuel and is an important source of hydrogen and a wide variety of organic compounds. 甲烷：一种无味，无色，易燃汽体，CH4，是天然气的主要组成部分，被用作燃料，是氢和其它多种有机化合物的重要来源 |