You see the difference in electronegativity, square it, multiply it by one-quarter and raise that to the power e.

你看到了电负性的差异，开方，乘以四分之一,在移到e上去做指数。

麻省理工公开课 - 固态化学导论课程节选

We learned about cognitive neuroscience using the study of face recognition as an important case study-- human differences, behavioral genetics, nature and nurture, sex and food.

我们学习了认知神经学,引用面部识别的研究,作为重要的例子分析-,还学了人体差异，行为遗传学，先天与后天，性与食物。

耶鲁公开课 - 心理学导论课程节选

And to measure the intensity of unequal sharing, we take the difference in electronegativity, which I am going to use the Greek symbol chi for.

要度量非平均的程度，我们考虑电负性的差异，我要用希腊语第22个字母chi来表示电负性。

麻省理工公开课 - 固态化学导论课程节选