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单词 light pen
释义  Related topics: Computersˈlight pen noun [countable]  TDa piece of equipment like a pen, used to draw or write on a computer screen 〔用于在计算机屏幕上画线或书写的〕光笔Examples from the Corpuslight pen• And when the program is ready, the student enters it simply by moving a light pen across the bar codes.• When the light pen is moved over the code, it triggers the chips to make sound through the loudspeaker.From Longman Business Dictionarylight penˈlight pen noun [countable]COMPUTING a special piece of equipment shaped like a pen, used to read printed computer codes on product labelsThe TX-2 uses a light pen to enter data straight on to the system.ˈlight pen nounChineseSyllable  used like Business a of a piece pen, equipment Corpus
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更新时间：2026/6/28 13:48:59