lightpen

['laɪtpən]     ['laɪtpən]    
  • n. [计]光笔(计算机的一种输入设备)

lightpen的用法和样例:

例句

用作名词 (n.)
  1. They had recently installed their lightpen system in a supermarket for stocktaking purpose.
    他们最近在超级市场安装了用于盘点库存的光笔系统。
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