英语词汇refractive index怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	refractive index
释义	refractive indexn. the ratio of the velocity of light in a vacuum to its velocity in a specified medium 折射率(光线在真空中传播速度与在某特定媒介中传播速度的比率)
随便看	leafage leafcutter leafed leaf green leafhopper leafiness leaf insect leafless leaflessness leaflet leaflike leaf miner leaf monkey leaf mould leaf spring leaf-stalk leafy league league league football leaguer leaguer league table leak leakage

英汉双解词典包含94788条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。