单词	octane
释义	octaneoc‧tane /ˈɒkteɪn $ ˈɑːk-/ noun [uncountable] Word Origin WORD ORIGINoctane Origin: 1800-1900 Latin octo ‘eight’; because it has eight carbon atoms Examples EXAMPLES FROM OTHER DICTIONARIES high-octane gasoline EXAMPLES FROM THE CORPUS All petrol engines run on 91 octane unleaded fuel and are equipped with modern fuel injection and three-way exhaust catalysts. For now it's beer, wine and low octane wine margaritas. It will take many years to phase out existing cars that run on high octane leaded petrol. Low octane petrol is readily available almost everywhere, while paraffin is widely used in the third world. Problems caused by using fuel with a too low octane rating. The motor industry thinks different, Retooling to make cars that run on low octane fuel will cost money. The problems of all five aircraft were thought to have been caused by fuel with a low octane level. When lead is added to petrol it improves a car's performance by increasing the octane rating. word sets WORD SETS► Gas/Coal/Oil anthracite, nounblack gold, nounblowout, nounboost, nounbunker, nounbutane, nounCalor gas, nounclinker, nouncoal, nouncoal bunker, nouncoalfield, nouncoal gas, nouncoal hole, nouncoalhouse, nounCoalite, coalman, nouncoal mine, nouncoke, nouncolliery, nouncrude, noundrill, verbdrilling platform, nounflue, nounfossil fuel, noungallery, noungas, noungasholder, noungaslight, noungasman, noungas meter, noungasometer, noungasworks, noungusher, nouninternal combustion engine, nounlead-free, adjectivelignite, nounmethane, nounnatural gas, nounoctane, nounoil, nounoil-bearing, adjectiveoilfield, nounoil-fired, adjectiveoilman, nounoil rig, nounoil slick, nounoil tanker, nounoil well, nounOPEC, nounopencast, adjectiveparaffin, nounpilot light, nounpit pony, nounpremium, nounpropane, nounrig, nounroughneck, nounsolid fuel, nounstrike, nounwell, nounwick, nounwildcat, verb Collocations COLLOCATIONS FROM THE CORPUSADJECTIVE► high · It will take many years to phase out existing cars that run on high octane leaded petrol.· There are two ways of producing high octane lead-free petrol. a type of hydrocarbon that is in fuel and is used as a measure of its quality:  low octane petrol high octane fuel
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