确切地说，regular和premium的区别在于各自的Octane Rating（辛烷等级）不同，何谓辛烷等级？简单来说，就是汽油对引擎的抗爆震（爆震：engine knocking，或engine knock）程度如何。
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high-octane rating 高辛烷值 ; 高辛烷值的
octane rating test 辛烷等级试验
intermediate octane rating 中间辛烷值
fuel octane rating 燃油辛烷值
octane rating index 辛烷值指数
iso-octane rating 异辛烷值定额
gasoline octane rating 汽油辛烷率
boosting of octane rating 提高辛烷值
air-corps method for octane rating 美国空军辛烷值测定法
同义词： octane number
以上来源于: WordNet
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 辛烷值
The gasoline label number is classified by the octane rating, which means the content of the octane.
汽油的标号是通过它的辛烷值来划分的。辛烷值代表汽油中辛烷的含量。
This paper introduces the structure and principle of operation of ZGPY-1 on-line NIR octane rating analyzer.
本文介绍了ZGPY - 1型在线近红外辛烷值分析仪的分析机理、结构及工作原理。
Should the car need a higher octane rating, there will be an indication in the owner's manual and perhaps under the fuel gauge and by the fuel fill hole.
应该车需要更高的辛烷值，将会有一个想法在老板的手册，也许在燃料表填孔和燃料。
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