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lightpen是什么意思

lightpen

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

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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