We're looking for trends. Obviously, if your aggregate score is 75, you're passed.But, 0 I'm looking at what's going on in the vicinity of 50 because I don't think my point scheme is that accurate.

很明显我们在寻找发展动态，如果你的总分是75分，你就通过了，但是，我在寻找50分左右的同学的发展动态0,因为我不认为我的分值安排是正确的。

麻省理工公开课 - 固态化学导论课程节选

How do I know that that's an absolute pass, though? Well, when we set the exams, we set the tests, I sit with my TA's and we say, all right, let's work out the point scheme on this question.

我怎么知道会是绝对的通过呢，我们制定考试，我们制定测试题，我和助教坐在一起，我们说，好吧，让我们一起来设定这道题的分值。

麻省理工公开课 - 固态化学导论课程节选

And so here is the Periodic Table in its glory today following on Mendeleev's scheme.

所以，这是周期表,今天非常光荣地跟在门捷列夫的图表之后。

麻省理工公开课 - 固态化学导论课程节选