Have you noticed how the shell is marked with pretty bright bands of colour?

你有没有注意过, 它的外壳上带有非常明亮的颜色条纹?

It's only after a while that you start to notice the diffraction pattern, because more electrons land in the spots that correspond to the bright bands in the pattern.

只是过了一段时间你才开始注意到 衍射图案，更多的电子在 与图案中的亮带相对应的斑点。