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单词 light pen
释义

light pen

noun
/ˈlaɪt pen/
/ˈlaɪt pen/
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  1. a piece of equipment, like a pen in shape, that is sensitive to light and that can be used to pass information to a computer when it touches the screen
  2. a similar piece of equipment that is used for reading barcodes
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更新时间:2024/12/22 23:13:59