In rooms with a good deal of ambient light, a screen image with a dark background and light text tends to washout, but dark text on a light background will maintain its visual intensity a bit better.
在光线明亮的房间里，深色背景和浅色文本搭配的屏幕图像容易泛光，但是浅色背景搭配深色文本的视觉效果就好得多。
The light travels through these slits and then at the far end here we have a screen on which we see where the light has fallen and in what intensity.
光线穿过这些缝,然后在那边我们看到,光在屏幕上的落点及其亮度。
The intensity distribution on a screen from dark to bright to dark again is called an interference fringe.
屏幕上的强度分布，从暗到亮再到暗，叫做一条干涉条纹。
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