| 词汇 | octane |
| 词根词缀 | 词源： hydrocarbon of the methane series, 1872, coined from octo- (from Gk. okto "eight;" see eight) + -ane, as in methane; so called because it has eight carbon atoms. A fuel's octane rating, in ref. to its anti-knocking quality, is attested from 1932. |
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