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为什么电视画面会有颜色？

电视画面有颜色是因为电视技术的原理。电视使用三基色光原理，即通过三种基本颜色的光分别调配而成。这三种基本颜色是红、绿、蓝，通过不同的比例和亮度控制三种光的合成，可以产生各种颜色。当这些颜色合成在一起时，就能够形成丰富多彩的电视画面。

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