First is that we have this mono layer of gold particles. So let's see if Professor Drennen is able to help us out here.

是如何做的,我们等会儿会自己做这个实验,我会问你们一些问题。

麻省理工公开课 - 化学原理课程节选

So that's where it's easy to get lost, but let's see if these lines in the picture help us stay on track.

这就是容易迷惑的地方，下面看看,这幅图中的这些线能否帮助我们追踪。

哈佛公开课 - 计算机科学课程节选

Again, when we see this evidence, then it starts to help guide us about what we might do to make changes in society in general.

当我们看到这些事实的时候,我们就知道可能应该怎么做,才能在整体上改变这个社会

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We know we need to divide by 266, 266 but what we need you to help us with is to figure out this top number here and see how many particles are going to backscatter. So if the TAs can come up and quickly hand out 1 particle to everyone.

知道背散射的概率就可以了，我们知道要除以,但还需要你们来搞清楚,分子上的数是多少，有多少个发生背散射的粒子,助教们请过来,把这些球分给同学们。

麻省理工公开课 - 化学原理课程节选