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concave lens /kˌɒmpətˈɪʃən ˈɹɪŋ ˈtuː/ n

中文：凹透镜

中文 · 凹透镜Español · lente cóncavaFrançais · lentille concave
Meaning：Corrects myopia by causing light rays emanating from an object to diverge and project an image onto the focus of the retina. contact lenses
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Concave lens Vision defects

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