So, let's say we're talking about the baseball, have a wavelength of the baseball that's on the order of the baseball.

克服质量的效应，比如说以棒球为例,要棒球的波长有它尺寸数量级的波长。

麻省理工公开课 - 化学原理课程节选

The way he described is when you try to get down a quantum dimensions and you are standing there with your camera, just remember the sun is at your back and your shadow is always in the picture.

这种方法被他描述为,当你试着处理一个量子尺寸时,并且你试着拿着你的相机在那，记住太阳在你的背后,而你的影子总是在照片上。

麻省理工公开课 - 固态化学导论课程节选

So, again, it is based on size, it's a little bit less intuitive than the idea of just straining out all of the potassium ions.

因此，这还是以尺寸为基础的，只是有点不够直观,与钾离子挤不进去的图像相比。

麻省理工公开课 - 化学原理课程节选