In fact,some of the nicest looking plants in the world are best enjoyed from a distance.

VOA: special.2009.08.25

They got some number that looks like for the wavelength they got the distance from here to Chicago, and they are going to drag that through the whole calculation.

他们得到一些数,看上去像是波长，他们得到这里,到芝加哥的距离，他们把那个值,用到整个计算中。

麻省理工公开课 - 固态化学导论课程节选

So, basically what we're saying is if we take any shell that's at some distance away from the nucleus, we can think about what the probability is of finding an electron at that radius, and that's the definition we gave to the radial probability distribution.

本质上我们说的就是,如果我们在距离原子核,某处取一个壳层，我们可以考虑在这个半径处,发现电子的概率，这就是我们给出的,径向概率密度的定义。

麻省理工公开课 - 化学原理课程节选

Tickets,offered in March, sold out in minutes. While many kept their distance from the tarnished pop star, some friends supported him.

VOA: standard.2009.06.26

r And what that is the probability of finding an electron in some shell where we define the thickness as d r, some distance, r, from the nucleus.

在某个位置为,厚度为dr的壳层内,找到原子,的概率，我们来考虑下我们这里所说的。

麻省理工公开课 - 化学原理课程节选