Wrev w reversible. in this case here let's see this is it's a pressure is going down.

曲线下的面积，可逆过程的功,这个过程中。

麻省理工公开课 - 热力学与动力学课程节选

Right as Undersecretary of the Treasury for International Affairs in the administration of Gorge W. Bush How bad is it?

没错,曾担任国际事务财务部次长,任职于布什政府,时下经济到底有多糟呢？

斯坦福公开课 - 经济学课程节选

The next line says if the weight of i is greater than a w, well then I know I can't put it in.

下一行说的是,如果i的重量比a，w大，好吧，我知道我不能把它放进去。

麻省理工公开课 - 计算机科学及编程导论课程节选

Delta v is going to be negative. w is going to be negative. Sorry, I got it backwards again.

这样就对外界做了功,这时候ΔV是正的。

麻省理工公开课 - 热力学与动力学课程节选

The word "swale" is interesting. You hear in it the s and the w, the two key sounds of this poem, which are the sounds of the whispering scythe.

沼泽地“这个词很有意思，听到S和W的发音了吧，这是这首诗的关键发音，也是低语着的镰刀的声音。

耶鲁公开课 - 现代诗歌课程节选

Q So it's just capital W over capital Q, q1 which is to say it's minus all that stuff over q1.

所以效率就是W除以，等于负的所有这些之和除以。

麻省理工公开课 - 热力学与动力学课程节选

And of course, in either case, w delta u is q plus w, so it's q irreversible plus w irreversible, u being a state function it's the same in either case.

当然了，在这两个过程中，Δu都等于q加，因此现在是q不可逆加w不可逆，同时u在这两个过程中都是态函数。

麻省理工公开课 - 热力学与动力学课程节选

U It's u, because u is to q plus w right, heat and work, but it's adiabatic. So there's no heat, exchange with the environment, and it's constant volume, so there's no p dV work, right.

什么是零？是U，因为,等于q加w，热量和功，但这是绝热的，所以系统与环境间没有热量交换；,同时它是灯体的，所以也没有pdV形式的功。

麻省理工公开课 - 热力学与动力学课程节选