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	seacock sea cow sea cucumber sea dog sea eagle sea-ear sea elephant sea fan seafarer seafaring seafood seafront sea-girt seagoing sea gooseberry sea green seagull sea hare sea holly sea horse sea-island cotton seajack seajacker seakale seakale beet

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。