octane number
noun [ C ] uk/ˈɒk.teɪn ˌnʌm.bər/ us/ˈɑːk.teɪn ˌnʌm.bɚ/ (also octane rating)
辛烷值
a number showing the quality of petrol by representing how well and with how much power it can make an engine work
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。