英语词汇“light pen”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

　

单词	light pen
释义	light pen SEE SYNONYMS FOR light pen ON THESAURUS.COM noun Computers. a handheld light-sensitive device used for pointing at characters or objects on a CRT in order to make or modify drawings or to indicate functions to be performed. Also called light pencil. Origin of light pen First recorded in 1955–60 Words nearby light pen lightning stroke, light-o'-love, light on, light opera, light out, light pen, light pipe, lightplane, light pollution, lightproof, light quantum Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for light pen light pen noun computing a rodlike device which, when applied to the screen of a cathode-ray tube, can detect the time of passage of the illuminated spot across that point thus enabling a computer to determine the position on the screen being pointed at a penlike device, used to read bar codes, that emits light and determines the intensity of that light as reflected from a small area of an adjacent surface Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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英语词典包含192737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。

　

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更新时间：2024/11/11 23:15:35