单词	pre-ignition
释义	pre-ignition /priːɪɡˈnɪʃ(ə)n / noun [mass noun] The premature combustion of the fuel-air mixture in an internal combustion engine.Early ignition or runaway pre-ignition causes higher combustion chamber temperatures that can wreck the engine.... High-octane fuel simply allows the higher pressures and temperatures in these high-output engines by preventing pre-ignition. To run an engine on unleaded fuel it may be necessary to retard the initial timing to prevent detonation and/or pre-ignition.
随便看	multireligious multiresistant multiring multirole multiroom multiroomed multirotor multi-row multiscience multiscreen multi-seat multisection multisectional multisectioned multisectoral multisecular multisegmental multisegmented multisensory raceway race woman rache rache hound rachel rachial

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