Versus looking at, for example, helium or neon or argon, these are all inert gases, inert meaning essentially do not react, those were grouped together in the periodic table.

相反，他发现氦，氖，氩，都是惰性气体，惰性的意思是基本不参与化学反应，因此把它们放在周期表中的同一类里。

麻省理工公开课 - 化学原理课程节选

Avogadro was a professor of chemistry at the University of Turin who did a lot of work on gas laws, understanding the number of gas particles in a given volume at a given temperature.

阿伏加德罗是一个化学教授,在都灵大学,他做了很多关于气体定律的研究，了解气体微粒,在特定的容量和温度下的数目。

麻省理工公开课 - 固态化学导论课程节选