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 indexBrE /rɪˌfræktɪv ˈɪndeks/NAmE /rɪˌfræktɪv ˈɪndeks/ noun (physics 物理) a measurement of how much an object or a substance refracts light 折射率
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