英语词汇“octane number”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

　

单词	octane number
释义	WordReference Random House Unabridged Dictionary of American English © 2024 oc′tane num′ber, Chemistry(of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics. Also called oc′tane rat′ing. 1930–35 Collins Concise English Dictionary © HarperCollins Publishers:: octane number, octane rating n a measure of the quality of a petrol expressed as the percentage of isooctane in a mixture of isooctane and n-heptane that gives a fuel with the same antiknock qualities as the given petrol
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更新时间：2025/2/23 13:38:56