Congressman Boehner of Ohio. "If we abandon Afghanistan, it will return to a safe haven for the Taliban and al-Qaida to plan and execute more attacks on Americans,"

VOA: standard.2009.09.28

We're just going to go through it and execute it a little bit. And then we'll move on and talk about how we'd actually make some of these measurements of delta H and compare

对吧？我们会讲完它并,实际应用一下，然后我们会,继续讲一下实际上我们,是怎样测量△H并与

麻省理工公开课 - 热力学与动力学课程节选

All right, so now let's see how we execute it, and do the calculations that allow us to calculate this. So, one, what's delta H in step one?

好，现在我们看看怎样操作它，怎样进行计算，第一步,步骤I的ΔH是多少？

麻省理工公开课 - 热力学与动力学课程节选