Warning: file_put_contents(): Only 0 of 5053 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/www.30232.com/index.php on line 55 octane rating英英字典_octane rating剑桥英语解释_octane rating柯林斯英文解释_绍翊字体网有道词典
1. 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