| 单词 | heavy oil |
| 释义 | > as lemmasheavy oil heavy oil n. any oil of high specific gravity, originally such an oil obtained from the distillation of coal-tar (cf. dead oil n. at dead adj., n., and adv. Compounds 2). ΘΚΠ society > occupation and work > materials > derived or manufactured material > extracted or refined oil > [noun] > distilled or refined mineral oils oil of amber1559 neftec1575 light oil1761 white oil1763 white spirit1832 eupione1838 gas oil1839 heavy oil1849 petroleum ether1851 asboline1863 hydrocarbon oil1864 solar oil1864 mineral spirits1875 blown oil1887 phenoloid1900 1849 C. B. Mansfield in Jrnl. Chem. Soc. 1 250 The heavy oil whose extrication forms the second period of the process, is technically called ‘dead oil’. 1913 V. B. Lewes Oil Fuel 129 The heavy tar oil, or ‘creosote oil’ forms a fairly good liquid fuel. The specific gravity is usually in the neighbourhood of 1.1, hence its name of ‘heavy-oil’, being heavier than water. 1913 V. B. Lewes Oil Fuel 180 Heavy oil engines. 1936 Discovery Feb. 37 Locomotives driven by heavy oil and electricity. < as lemmas |
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