The measurement of focal length.
| 单词 | θ64938 |
| 释义 | the world > physical sensation > sight and vision > optical instruments > lens > [noun] > measurement of focal distance (1) focimetry1881 The measurement of focal length. |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。