What appears to the naked eye to be glowing is actually a superposition of different lines of distinct frequency. So, this is quantized.
出现在肉眼面前的光亮，事实上是频率不同的光线的叠加。所以，这是量子化的。
2
By linking the electrical currents of two superconductors large enough to be seen with the naked eye, researchers have extended the domain of observable quantum effects.
研究人员通过将两个大到肉眼能够观察的超导体的电流联系起来，拓展了可以观察到的量子效应的范围。
3
One can witness a slightly yellower change in the color of the dog's skin, but to the naked eye, fluorescence cannot be seen without the presence of UV light and goggles.