Well, if you get the combustion chamber hot enough, in point of fact, there are some reactions between nitrogen and the oxygen.

如果燃烧室的温度足够高的话，实际上在氮气和氧气之间,会发生一些反应。

麻省理工公开课 - 固态化学导论课程节选

z And what you need to remember is if the z 8 is equal to eight or greater, such as oxygen being the cut-off point, this sigma 2 p orbital is actually lower in energy than the pi 2 p orbitals, the molecular orbitals.

你们要记住如果,等于或者大于，就像O是分界点，这时sigma2p轨道,比π2p轨道能量更低。

麻省理工公开课 - 化学原理课程节选