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	trembler tremblingly trembling poplar trembly tremendous tremendously tremendousness tremolo tremor tremulous tremulously tremulousness trenail trench trenchancy trenchant trenchantly trench coat trencher trencherman trench fever trench foot trench mortar trench warfare trend

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