Mendeleev is the one who taught us that the properties of the elements are a function of the atomic mass.

门捷列夫教授我们元素特性,是元素质量所起的功能。

麻省理工公开课 - 固态化学导论课程节选

And again, there'll be key elements that run in cycles and understanding those can be extremely important in understanding how cellular function works.

同样地，在循环中也会有,一些关键的要素,研究这些对于理解细胞的,运作机制是极其重要的。

麻省理工公开课 - 热力学与动力学课程节选