英语词汇effective aperture怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

　

单词	effective aperture
释义	Definition of effective aperture in English: effective aperture noun Optics The diameter of the widest beam of light incident on an optical system that goes to form an image; also in extended use (e.g. in connection with radio waves or particle beams). Origin Mid 19th century; earliest use found in Littell's Living Age. Definition of effective aperture in US English: effective aperture noun Optics The diameter of the widest beam of light incident on an optical system that goes to form an image; also in extended use (e.g. in connection with radio waves or particle beams). Origin Mid 19th century; earliest use found in Littell's Living Age.
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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。

　

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更新时间：2024/11/8 22:20:19