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We've used the fundamental equations that are hiding down here, out of sight but never out of mind.
我们利用了,写在这里的基本方程，虽然没有注意它但却时时刻刻记者它。
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because we have another handicap like language is like burden that people from here don't really have, so
因为我们也有语言上的障碍，这里的人就没有这个负担。
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That is why this says atomic number, but for most intents and purposes we can say this could be atomic mass.
那就是为什么这里说原子序数，但如果没有意图和目的,我们就说是原子质量。
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So in terms of the first step of skeletal structure, this is actually going to be easier because we don't have a central atom, we just have carbon and nitrogen here.
对于第一步画出骨架，其实比刚才更容易,因为我们没有一个中心原子，我们这里只有碳和氮两个原子。
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There's one more piece that we'd like to get out of that, and that is-- you may have been wondering, what's with the funky stuttering here of three double-quotes in a row. All right? And that is a specification.
但是你没有屏蔽这个函数的使用细节,在这里我们还想再讲一讲,那就是--你可能正在想,这里连续3个奇怪双引号,是干什么用的。
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There is nothing at all! Nothing but this manna to look at!' Moses heard the people weeping, every clan apart, each person at the entrance of his tent.
这里什么都没有，除了这吗哪以外’,我们眼前什么都没有，摩西听到人们，在自家帐篷前哭号。
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Well we can go look up here, looking at the differential, there are no approximations here.
好的我们可以看这儿,看这个微分方程，这里没有做近似。
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Let's talk to the Beta's a second; let me just emphasize at this stage there are no wrong answers.
我们先来讨论一下选β的理由,我要强调一下这里没有错误的答案
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We don't have the time here to go case, by case, by case, and ask ourselves, "How does the evidence fall down one side versus the other?"
我们这里没有时间一个接一个地,看这些例子 然后问,这个证据是怎么让一方打倒另一方的
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So there's no mention of int, and yet we've been saying for the past couple of lectures, that anytime you declare a variable, you absolutely have to specify its type.
这里没有提及int，我们在前几个演讲中,一直讨论的东西，任何时候你声明一个变量，你必须指定它的类型。
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So school here is kind of different because we don't have a campus.
这里的学校有些不同，因为我们没有校园。
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There's no way that we can get from here, to here, to here without knowing a little bit more information.
我们不能直接从这里到这里，在没有更多信息的情况下。
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You are going to read, you are going to learn, you are going to come to lecture, I am going to hit some high points, things that I find particularly interesting, but it is not sort of well, he said we are going to read this but then he didn't talk about it in class.
你们要去阅读，要学学习，你们要来上课，我要讲些重点，是一些我发现的很有趣的事情，但是不是你们想的那种，他叫我们读这里,但是他并没有在课堂上谈论这。
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So here I've written for the hydrogen atom that deceptively simple form of the Schrodinger equation, where we don't actually write out the Hamiltonian operator, but you remember that's a series of second derivatives, so we have a differential equation that were actually dealing with.
这里我写出了,氢原子薛定谔方程的,最简单形式，这里我们实际上,没有写出哈密顿算符,但是请记住那你有，一系列的二次导数,所有我们实际上会处理一个微分方程。
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So now, in this case, this code is going to, when we get here, check, and if you haven't seen that strange thing there, that exclamation point in bang computer-ese called a bang, it says x if ANS star ANS is not equal to x, all right?
那么现在，在这个例子中，当我们执行到这里，代码会去检查,如果你没有看到过这个奇怪的东西,这个感叹号在计算机学中被叫做,代码的意思是如果ANS的平方不等于？
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Notice though what I've done. Open, a particular kind of exception called I O error.
不过还是看看我们做的，这里我们并没有把异常报做io错误。
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Keep in mind we do have this p orbital here and it's coming right out at us. And this p orbital is here, but it's empty, it doesn't have any electrons in it, that's why we don't have to worry about it in terms of getting our electrons as far away from each other as possible.
他们程120度角互相远离,这样它们离得最远，记住我们这里确实有个p轨道，它朝向我们，这里有个p轨道，但它是空的,里面没有电子,这就是为什么我们在考虑。
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On the other hand, we've just argued that you don't have a dominant strategy here; it's not the case that easy dominates hard.
我们刚才说这里没有优势策略,平坦之途并不总是优于崎岖之途
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Here we have yet another kind of feature that we haven't talked about.
现在这里有另一种特征,我们还没有谈到。
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