octane rating/number

An indicator of a fuel's ability to burn at a controlled rate at high temperatures and pressures without causing a detonation (very rapid burning or exploding). This number is expressed as a percentage by volume of iso-octane in a mixture with a normal heptane that has the same knocking characteristics as the fuel. Fuel with an 87 octane rating is a mixture of 87% iso-octane and 13% heptane. Also called the knock rating or the performance number when the octane rating is above 100.

单词	octanes
释义	DictionarySeeoctane octane rating/number octane rating/number An indicator of a fuel's ability to burn at a controlled rate at high temperatures and pressures without causing a detonation (very rapid burning or exploding). This number is expressed as a percentage by volume of iso-octane in a mixture with a normal heptane that has the same knocking characteristics as the fuel. Fuel with an 87 octane rating is a mixture of 87% iso-octane and 13% heptane. Also called the knock rating or the performance number when the octane rating is above 100.
随便看	nitrogen enriched air nitrogeneous bases nitrogen equilibrium nitrogen equivalent nitrogen euphoria nitrogen family nitrogen fertiliser nitrogen fertilizer nitrogen fertilizer use efficiency nitrogen fixation nitrogen-fixation nitrogen fixation by tropical agricultural legumes nitrogen fixation in tropical agricultural legumes nitrogen fixation process nitrogen fixation stimulation nitrogen fixer nitrogen-fixer nitrogen fixing nitrogen-fixing nitrogen fixing bacteria nitrogen-fixing bacteria nitrogen-fixing microorganisms nitrogen-fixing trees nitrogen fluoride nitrogen fluorine compounds