它们的视网膜细胞对中等亮度光线中的红色成分也不太敏感。
Their retinal cells are also not excessively sensitive to red components of moderately bright light.
研究人员预计，这些相位应该表现为所观测到的光线在亮度上的微弱变化。
These phases should show up as tiny variations in the intensity of the observed light, researchers have predicted.
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 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.
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