| 单词 | optical lever |
| 释义 | optical levernoun : an arm or lever the displacement of which is measured by an attached mirror and a fixed telescope and scale commonly used for measuring small lengths |
| 随便看 |
|
英语词典包含469781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。