单词	light pen
释义	English Business light pennoun [ C ] uk/ˈlaɪt ˌpen/us/ˈlaɪt ˌpen/ a pen-shaped device used for reading bar codes Thesaurus: synonyms and related words Computer hardware 3-D printer agnostic blackberry brick bubblejet codec handheld Macintosh micro microcomputer mouse personal organizer ram storage device tablet toggle trackball underscore VDT word processor See more results » light pennoun [ C ] ukusIT a pen-shaped object that uses beams of light to read bar codes (= small rectangular patterns of printed lines that store data) or that you use to touch a computer screen in order to choose information: Outgoing inventory can be quickly checked with light pens connected to each terminal.
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