在计算机图形学中，一种指点显示屏面的光敏信号选图装置。

In computer graphics, a light sensitive pick device that is pointed at the display surface.

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在计算机图形学中，一种指点显示屏面的光敏信号选图装置。

In computer graphics, a light sensitive pick device that is pointed at the display surface.

youdao