| 释义 |
diopter美 [daɪ'ɒptə(r)] 英 [daɪ'ɒptə(r)] - n.屈光度（透镜的折射能力单位）
- 网络折光度；曲光度
1. | 屈光度（透镜的折射能力单位）a unit for measuring the power of a lens to refract light(= make it change direction) |
n. | 1. a unit of measurement for the power of a lens, especially a spectacle lens, equal to the reciprocal of the focal length of the lens in meters. |
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