| 单词 | light pen 1 |
| 释义 | (computing 计) (also wand) photoelectric device, shaped like a pen, that can communicate with a computer either by making marks on the screen of a visual display unit or by reading the pattern of a bar code 光笔（人机通信光电装置, 呈笔形, 可用以在屏幕上作记号或读条形码）. light pen 2 (computing 计) (also wand) photoelectric device, shaped like a pen, that can communicate with a computer either by making marks on the screen of a visual display unit or by reading the pattern of a bar code 光笔（人机通信光电装置, 呈笔形, 可用以在屏幕上作记号或读条形码）. |
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