“octane number”的概念、定义、习题解题方法及翻译-物理辞典

单词	octane number
释义	octane number A number that provides a measure of the ability of a fuel to resist knocking when it is burnt in a spark-ignition engine. It is the percentage by volume of iso-octane (C₈H₁₈; 2,2,4-trimethylpentane) in a blend with normal heptane (C₇H₁₆) that matches the knocking behaviour of the fuel being tested in a single cylinder four-stroke engine of standard design. Compare cetane number
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物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。