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 index noun the ratio of the velocity of light in a vacuum to its velocity in a specified medium 折射率。
随便看	by implication by inches by/in comparison by itself by jingo! by Jove by-law by leaps and bounds byline by main force by marriage by means of by mistake by myself by name byname by no manner of means by no means by no stretch of the imagination by numbers BYOB BYOG by oneself by oneself by one's fingertips

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