英语词汇dioptre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	dioptre
释义	dioptre/daiˈɒptə/n. (US [美] diopter) Optics a unit of refractive power of a lens, equal to the reciprocal of its focal length in metres 【光学】屈光度，折光度(透镜折射力单位) [French dioptre via Latin dioptra from Greek: see DIOPTRIC]
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