So let's take our one model that we keep going back to Equation of state, and just see how it works.
我们回到经常使用的理想气体模型,或者说状态方程。
How many people vote for that this is a reversible process? I've got one vote back there two votes, three votes, four votes. Anybody else?
有多少人认为,这是一个可逆过程?有一个,两个,三个,四个,还有别的人吗?
All right. Let's step back from this discussion and notice how many objections have we heard to what they did?
我们先暂停讨论,回想下对他们行为,有多少反对意见?
We were going to have a clicker slide on how many bounced back but it looks like we're having a little technical difficulty with that.
发生背散射,球被弹回来了的,同学请你们站起来,让我算算。
If you go back to this particular graphic, the interesting thing is how have humans changed and what are they like now.
如果你回过头来看这张图,思考人类是如何演化的,现在又成为什么样
Historically, money lenders of one sort or another go back -who knows how far back -thousands of years.
从历史上讲,放债人的存在可以追溯到,谁知道多久以前,数千年前吧
that we understand how markets work better, that we... ? or that we stand back and let them?
或者说我们了解市场如何才能更好地运作。,而应当放手让市场自我调节?
The sense of going back and forth, no one of us on top, not correspondent in a vertical way, how things going down there.
这种来来回回的感觉,没有人是在高处,也没人在低处。
The first step is divide them in half. All right? I'm not sure how to mark it here, remember I need to come back there. I'm not yet done. What do I do?
我不能确定如何,在这里进行标记,记住我会回这里进行讲解,我还没做完呢?
And we'll look back maybe and see how that difficult text would've looked in its original context.
我们会倒回去看看这一不同文本,在其原背景下是什么样的。
But, how do you explain some of these going way, way back.
但是你如何解释,其中的一些会回来。
So then you have Xenophon writing his Anabasis, The March Back, telling the story of how those 1,500-- those 10,000 Greeks rather got back home.
所以当色诺芬书写《远征记》时,讲述这一千五百,哦,是一万希腊人凯旋而归的故事
I tie a spring to my back and I anchor it to the wall and see how much the spring stretches before the two forces balance.
我把弹簧一端系在背后,另一端固定在墙上,观察两个力平衡时弹簧的伸长量
But yet when you look back from the nineteenth century, these factors do count in explaining how countries turn out to be the way they are.
不过当你从十九世纪开始回顾历史,这些因素的确能解释,国家是如何转变成现在这样的
We didn't have a clue back then how to explain life in material terms.
在那个年代,我们还不知道如何从物质的角度去解释生命
How we could take cells that are differentiated to some extent and make them de-differentiate, to go back in the process of differentiation so that they gain more potential.
我们如何把一些已经分化到,一定程度的细胞去分化,使其回到分化之前,重新获得更多的潜能
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