PROFESSOR BAWENDI: The only But it's hard to imagine an irreversible compression the way we can just imagine an irreversible expansion.
,但是我们很难,像描述不可逆膨胀一样,来描述不可逆压缩。
So when I expand this gas adiabatically and it cools down, why do you think it might cool down?
现在我们知道了气体绝热膨胀时,温度会下载,为什么会降温?
To get down to it, you have to cut away what is not true, what is inflated, beside the point, excess, ornament.
更直接点,你们要去掉不真实的,除了这点还有膨胀的,过量的和装饰的。
There's a lot of imagery of swelling, of distortion and distention of the body that some critics point to her biography to explain.
在她的书中有许多关于身体肿胀、变形和膨胀的想象,一些评论人从她的自传中找到了解释。
And this goes back to the point I tried to make last time. Yes, the computers are really fast.
也会迅速膨胀,这就回到了我上次给大家讲的那一点。
Nationally, home prices in the United States rose 85% between 1997 and 2006 in real terms-- in inflation-corrected terms.
在通货膨胀已校正的条件下,美国房价,在1997 年到2006年之间,实质上上涨了85%
Well, the polis straightens out crooked judgments, "gentles the swollen ambitions and puts an end to acts of divisional strife.
城邦平反了,歪曲不公的裁决,驯服了膨胀贪婪的野心,终结了分裂和冲突
You don't wanna have it depreciate all the time, and that goes back to the bad old days of inflation.
想必没人愿意看它一直贬值下去吧,搞不好又回到了通货膨胀的灰色岁月。
As the fierce winds charged her belly, Her body was distended and her mouth was wide open.
这时邪风充满了她的肚子,她的身体膨胀起来,她的嘴长得很大。
We can just say religion excess, why?
我们可以就说这是宗教的膨胀,为什么呢?
Let's imagine maybe instead we just immediately dropped the pressure let the system expand against the lower pressure.
现在假设,我们很快地降低压力,让系统在低的外压力下膨胀。
They're both expansions. They'll both have net work done on the surroundings, but not the same amount, right.
是不同的,他们都是膨胀,都对外做功,但数量不同,对吧?
The piston has a cross-sectional area, a, and the force pressure is force per volume area.
我们以活塞系统为例,来说明膨胀功。
So we would say the real interest rate equals the nominal rate-- approximately equals--the nominal rate minus the inflation rate.
我们可以推出实际利率约等于,名义利率减去通货膨胀率
It cools down because I'm doing work but the energy has to go somewhere, right?
因为膨胀过程中,对外做功?
Inflation rates had gotten very high even in Germany where anti-inflation sentiment was the highest.
通货膨胀率仍然很高,甚至在,反通货膨胀的情绪最高涨的德国。
You take fuel, rather you take something that's warm, and you put it in contact with the atmosphere, it cools down.
改变约束,继续加热,气体膨胀。
T2 So this is an isotherm at some different temperature T2, a cooler temperature, because this was an expansion.
这个绝热过程的温度是,比T1低,因为这是个膨胀过程。
So the work that you're doing to expand, to go through this experiment, ends up cooling the gas.
因此在膨胀气体的过程中,气体降温。
Arthur Burns, chairman of the Fed, There's a big inflation run up to Richard Nixon's reelection in 1972.
亚瑟·伯恩斯,前美联储主席,当时出现了严重的通货膨胀,一直持续到1972年,理查德·尼克松连任总统。
How much energy are you going to get out, and how far are you going to be able to drive a car with this expansion, let's say, so that's the problem.
你能获得多少能量,利用这次膨胀,你可以把你的车开出多远,比如说这就是问题所在。
Here there's an expansion going on, so the system is doing work to the external world.
这里发生了膨胀,所以系统对外界做功,活塞被推出来。
it's kind of like the Joule expansion, an ideal gas.
焦耳-汤姆逊膨胀过程相似。
So war time periods were typically periods of great inflation and debasement of the currency.
所以,战争时期通常是,严重的通货膨胀,和货币改造的时期。
Here comes an adiabatic expansion, to point three.
通过绝热膨胀到,第3点。
p We want p equal to p external for the entire expansion, p2 and p external is decreased steadily from p1 to p2.
在膨胀过程中保持p等于外部,外部p很快从p1衰减到。
How do you look at the balance sheet to the Federal Reserve? It has ballooned.
你是怎么看待美联储的资产负债表的,它正像气球一样膨胀。
So the Joule free expansion involves opening this valve and asking what happens when this gas moves into the other bulb or distributes between the two.
焦耳自由膨胀就是,打开阀门后的过程,气体从一个腔跑到另一个腔,并在它们之间平均分配。
We had inflation rates in the United Kingdom on the order of 20% a year and people were asking ? what is going on in the UK?
我们在英国有,每年20%的通货膨胀率,然后人们还在问,英国正在发生什么?
Real refrigerators actually work with liquids that go into gases so use the latent heat of the liquid, so it doesn't really work like the Joule-Thomson expansion. So this is real.
液体变成气体来工作,以运用液体的潜热,所以这不是,真正像焦耳-汤姆逊膨胀一样工作,这是真实的气体,不像焦耳。
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