| 单词 | actinic focus |
| 释义 | Definition of actinic focus in English:actinic focusnoun Optics Photography rare
OriginMid 19th century; earliest use found in Art-union. Definition of actinic focus in US English:actinic focusnoun Optics Photography rare
OriginMid 19th century; earliest use found in Art-union. |
| 随便看 |
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。