首页  英汉  汉英  英英  词组  用法  例句  同义词  写作  俚语  缩写  词源  词根  法汉  德汉  日汉  俄汉  韩汉  西汉  意汉  泰汉  越汉


请输入您要查询的英文单词:

 

单词 point focus
释义

point focus

Physics
noun
A focus of a beam of light, particles, etc., which is small enough to be considered as a point.

Origin

Early 20th century.

随便看

 

英语词典包含243303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。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2026/6/3 10:13:48