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Once interest rates hit zero you can't cut them anymore and that's what the Fed wants to do.
一旦利率下跌至零,你就再也不能减少它们,而且这正是联邦试图做的事情。
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So hopefully, approach if you haven't already, 0 problem set zero with that mindset.
我希望，如果你们还没带着这种心态，着手处理习题集。
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You got zero on the rest because you didn't write anything.
你在其它部分得到零分,因为你什么都没有写。
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There's no change in them, and then we also looked at some at non-state functions, work and heat, and saw that those aren't zero going around a cycle. Of course you can do work in a cyclic process, and heat can be exchanged with the environment at the same time.
它们不会有变化，然后我们研究了,一些非态函数，功和热量，并看到,沿着循环行进一周的话,它们并不是零，当然你可以在,一个循环过程中做功，而同时热量可以在系统,与外界环境之间进行交换。
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It looks like we hit zero, but we actually don't remember that we never go all the way to zero, so there's these little points if we were to look really carefully at an accurate probability density plot, And then, for example, how many nodes do we have in the 3 s orbital?
但其实没有，记住，我们永远不会到零,如果我们，在概率密度图上,非常细致的看这些点的话,它永远不会到零，在3s轨道里，有多少个点呢？，2个，正确？
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Well, we already saw no, 0 if my initial guess is zero, I don't get anywhere.
我们已经说了不是了，如果我的初始猜想点是。
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If you're a fan of the neutral container theory, you won't have anything extra to add, because life per se is just a zero.
如果你是中性容器理论的粉丝，你就没有任何额外的东西可添加，因为生活本身等于零。
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t the new deal, s over , by the unemployment is down to close to zero by the middle of the War.
如果不是新政，If，it，wasn’,萧条结束，it’,失业率也降低到接近零点,在二战中的时候。
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So that means that delta u isn't zero this time.
U不再是零，它是理想气体。
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And if you haven't yourself dived into your own problem set zero, whose PDFs are available online, realize that if something like this, given that it's a minute or so long, kind of looks you know, despite the cutesiness of it, kind of overwhelming in that you don't really know where to begin, how could you possibly sketch out this whole story line.
如果你还没有真正沉下心来,看习题集0，网上可以提供这些PDF文件，好好地感受一下像这样的东西，假定只有一分钟左右这么长,先不管它外表看起来是否可爱,也不管它让人无从下手的压迫感,你怎样才能勾勒出,整个故事最初的框架呢？
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So, when the voltage difference between the plates is zero, or when we just don't have the plates there at all, the cathode rays are not bent, they just go right in a straight line, and they can be detected on this screen.
拐弯来测试它们是否带电,当两板之间电压为零，或者根本就,没有这两个板时，阴极射线是一条直线,它可以在屏幕上。
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- Just to give you another several fun facts -- and next week, once we've looked at your Problem Set "Zero Submissions," which, if you haven't filled it out yet, you'll see asks a few demographic questions, a few geek-type questions so we can get a sense of the students.
我给你们分享另外几个有趣的事实-,在下周，一旦我们看到你们的习题集上是,“零个意见书“，如果你们还没有填写那个习题集的话，你们可以问一些人数统计方面的问题，或一些古怪的问题，那样我们就能对学生有个初步的了解。
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Because he thought that would be big enough that in Denmark, the temperature wouldn't go below zero.
因为他觉得这个数字,对于丹麦来说够大了，气温不会低到零度以下。
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Delta u is q plus w. Delta u isn't zero.
U是q+w，△U不是零。
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And so now, instead of using these reference points for the Kelvin scale, we use the absolute zero, which isn't going to care what the pressure is.
就像理想气体温标,与气体的种类无关一样，具有普适性，在开尔文温标中。
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If T is less than T inversion, you have the opposite case, and dT/dp is greater than zero.
如果T比转变温度低,情况就相反，偏T偏p大于零。
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If you could get to zero degrees Kelvin, you'd get perfect efficiency, 0 but you can't get to zero degrees Kelvin, you can't. Even if you have an infinite amount of resources, you can't get there.
如果能达到，你就能获得完美的效率，但你得不到，得不到，即使你有无穷多的资源,你也做不到。
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That's different when you have continuous values-- you don't have P because it's always zero.
和离散型随机变量的分布不同的是,连续型随机变量的分布中,某一点的概率值始终是零
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pV=RT p plus a over v bar squared times v bar minus b equals r t. All right if you take a equal to zero, these are the two parameters, a and b. If you take those two equal to zero you have p v is equal to r t.
我们就回到,也就是理想气体,状态方程,下面我们来看看,这个方程。
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We don't get to set any of them to zero, right?
这里面没有等于零的？
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If you want to get some input from the user, my God I don't want to have to program it to low level zero and 1 just to get keys from the keyboard; please let there have been someone who does that for me and indeed there are an increasingly sophisticated options that you can pull off the shelf.
如果你想获得一些用户的输入数据，我的上帝,我可不希望在键盘上敲入0，1的低水平方式来编程;,希望有个人能帮我做这件事吧,但是现有的选择,也变得日益复杂了。
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We just didn't use this word in week zero.
只是之前我们没有用这个词而已。
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If the probability is zero that means the event can't happen.
如果概率等于0就意味着事件不会发生
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Actually, you can't say what the share price is because there are zero shares and they have a zero price, so the value of the price per share is zero over zero and you can't define it.
实际上你并不能确定它的股价多少,因为股数为零,其市值也为零,所以每股价值就是,零除以零,无法计算
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We didn't even have income tax until 1913 when the Supreme Court allowed it, so it was zero, then it went up to 90%-- or actually it was 94% at the peak--and it came down to 15%.
直到1913年最高法院允许征收的时候,我们才开始征收所得税,开始税率是零,而后飙升到90%,然后它最高达到94%再降到15%
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I am going to say if that electron is to stay in its orbit, that is to say it doesn't flee the atom, it doesn't collapse under the nucleus then the sum of the forces on the electron must be zero No net force. And so that will be the sum of a dynamic force plus an electrostatic.
如果电子会保持在它的轨道上运行,既不脱离原子的话，它就不会由于原子核对它的吸引力而被瓦解掉,电子所受的合力一定为零,由于没有合力,所以电子所受力为动态力和静电力的总和。
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It doesn't go all the way to absolutely 100 percent ammoniazero hydrogen zero nitrogen if they were mixed together with the right ratios.
即使按适当比例混合,也不会出现全部氨气,没有氢气和氮气的情况。
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All right, so you can't get perfect efficiency, 0 but at least if you were able to go to zero degrees Kelvin, then you'd be all set.
好吧，你得不到完美的效率，但至少如果能把温度降到,那你就万事俱备了。
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In other words, T surrounding dS has to be greater than zero, and of course temperature is always positive.
换句话说这就意味着，环境温度T乘以dS必须大于零，当然环境温度T是正的。
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