petroleum; an oil obtained by refining petroleum; spec. a petroleum fraction consisting of a mixture of the heavier hydrocarbons and having a high…
| 单词 | θ69432 |
| 释义 | the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > petroleum varieties (10) petroleum oil1799 petroleum; an oil obtained by refining petroleum; spec. a petroleum fraction consisting of a mixture of the heavier hydrocarbons and having a high… petroleum spirit1868 a petroleum fraction consisting of a mixture of the lighter hydrocarbons and having a low flashpoint; petrol. middle distillate1951 a petroleum fraction that comes off at intermediate temperatures (about 180° to 340°C) in fractional distillation, from which are obtained… Subcategories:— products of (2) — qualities of (2) — petrochemistry (1) — petrochemical (1) — naptha fractions (1) |
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