关于彩色电视三原色,在教材及其配套的教辅书中皆介绍:用放大镜观察彩色电视三原色。由于放镜放大倍数有限,很难观察到理想的效果。现介绍一种便捷方法,可达事半功倍之效。在电视机冷却状态下,用湿抹布擦拭电视机屏,这样在屏上就会留下一些水珠(注意:以防安全,抹布不能沾水过多 The three primary colors of color television are introduced in the textbooks and supporting supplementary books: Observe the three primary colors of color television with a magnifying glass. Due to the limited magnification of the mirror, it is difficult to observe the desired effect. Now introduce a convenient way to achieve a multiplier effect. In the cooling state of the TV, wipe the TV screen with a wet rag, so that some drops of water will remain on the screen (Note: In case of security, the rag can not be exposed to excessive water