| 单词 | petroleum oil |
| 释义 | > as lemmaspetroleum oil petroleum oil n. petroleum; an oil obtained by refining petroleum; spec. a petroleum fraction consisting of a mixture of the heavier hydrocarbons and having a high flashpoint. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > petroleum varieties petroleum oil1799 petroleum spirit1868 middle distillate1951 society > occupation and work > materials > raw material > mineral material > mineral oil > [noun] petroleum1526 oil of petre1528 petrol1540 oil of saltpetre1685 earth-oil1732 white oil1763 mineral oil1771 coal oil1784 petroleum oil1799 crude oil1865 petroleum spirit1868 petroleum coke1881 crude1904 black gold1910 marker crude1974 benchmark crude1975 1564 in E. Roberts & K. Parker Southampton Probate Inventories, 1447–1575 (1992) I. 221 A blader with oleum petroleum, ij d.] 1799 tr. Laboratory (ed. 6) I. i. 41 Mealed powder..mixed with rock-oil, or petroleum oil. 1874 J. H. Collins Princ. Metal Mining (1875) xviii. 121 Within the last few years, lamps for burning paraffin and petroleum oils underground have been devised. 1898 Daily News 14 July 6/6 To adopt a flash point of 100 degrees (Abel close test) as the dividing line between petroleum oil and petroleum spirit. 1947 Nature 4 Jan. 32/1 The use of a highly refined petroleum oil for application to orchard trees as an insecticide and acaricide is firmly established as a valuable pest-control treatment with citrus. 1991 High Volume Printing Feb. 30/2 Black soy-based news inks are about 25 percent higher than petroleum-based inks in general because of the price difference between soy oil and petroleum oil. < as lemmas |
| 随便看 |
|
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。