So, this raises kind of an interesting question in terms of what the difference is between these two cases, and we're talking about numbers of energy.

那么，到这里就出现了一个很有意思的问题,那就是下面这两种情况的区别在哪里？,当然我们关心的是能量的多少。

麻省理工公开课 - 化学原理课程节选

It is just down the hall from this lecture theater. And you bring the Periodic Table and the Table of Constants and a calculator and something to write with.

就在这件教室下面的大厅那,你们带上元素周期表和常数表,还有一个计算器和一些写的东西。

麻省理工公开课 - 固态化学导论课程节选

You put it between two pieces of paper, then you write on the top one and it creates as copy on the bottom one.

你将它放在两张纸之间，然后你在上面那张纸上写字,下面那张纸上就会复印下来。

耶鲁公开课 - 金融市场课程节选