| 释义 |
di·op·ter AHD[dī-ŏpʹtər] D.J.[daɪˈɒptə]K.K.[daɪˈɑptɚ]n.（名词）abbr. D.【缩写】- A unit of measurement of the refractive power of lenses equal to the reciprocal of the focal length measured in meters.屈光度：透镜或棱镜折光率的一种量度，等于以米计算焦距之倒数
- Obsolete diopter [an instrument for measuring angles] 废语 diopter [测量角度的仪器]
- from Latin dioptra 源自 拉丁语 dioptra
- from Greek 源自 希腊语
- dia- [dia-] dia- [前缀，表“完全的，有始有终的”]
- optos [visible] * see ok w- optos [可见] * 参见 ok w-
diopʹtral AHD[-trəl] （形容词） |