英语词汇“visual acuity”是什么意思，“visual acuity”的读音、用法及例句翻译-烛光网

词汇	visual acuity
释义	visual acuityn.（名词） Sharpness of vision, especially as tested with a Snellen chart. Normal visual acuity based on the Snellen chart is 20/20.视敏度：视觉的敏锐程度，尤指经斯纳仑氏图表所测结果。在斯纳仑氏图表上测得的一般的视觉敏锐度为20/20
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