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And we give different names, depending on what kind of electrons we're dealing with, so, for example, with h c l here, we can talk about having bonded versus lone pair electrons.
我们还起了不同的名字，给我们要处理的不同类型的电子，以氯化氢为例，我们来介绍一下成键电子与孤对电子。
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is what we designed, but for aerospace systems.
就是我们要设计的，不过这是为宇航系统设计而已。
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Last lecture, you might have thought this was a SHASS class, it's not like a philosophy class, and it was important to set the stage for what we're going to talk about, but we talked about very high level things.
上一节课，你们可能认为,这课没什么意思，这可能不太像一门哲学课，为我们所要讨论的去做好准备,是很重要的，我们上节课讲的是一些比较高层次的的东西。
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These are worlds apart from many of the things we know, so please, there's a lot of textual reading to do for Monday and Wednesday.
这些世界和我们平常所知道有所不同，我们要做大量的文本阅读，为星期一和下星期三的课做准备。
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And today we have a very special program for you.
今天我们要为大家奉献一期特别的节目。
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That was supposed to be a tragedy that, in some manuscript drafts that we still have today -- in some manuscript drafts, he titled this prospective tragedy Paradise Lost and in other drafts Adam Unparadised.
他打算写一部悲剧，在一些目前还存留的草稿中,我们看到弥尔顿将这部要写的悲剧命名为,《失乐园》，在另外一些草稿中又叫做《亚当失乐园》
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Tomorrow Quiz 2 based on Homework 2.
明天我们要以作业2为基础进行第二次测验。
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? "What are we to call this capacity?"
我们要如何称此为能力“
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And again, this is between the p orbitals, these are not hybrid orbitals, so when we name this bond we're going to name it as a pi bond here, because it's between two p orbitals, and it's going to be between the carbon 2 p y orbital, and the other carbon 2 p y orbital.
同样，这是在p轨道之间的，它们不是杂化轨道，所以当我们命名这个键时,我们要命名它为π键，因为它在两个p轨道之间，而且是在碳2py轨道，和另一个碳2py轨道之间。
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Tonight, I'll be creating props for our show
今晚，我要为我们的演出制作道具，
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She is a PhD candidate in the department of music, just passed her qualifying exam with flying colors, so here she is to demonstrate the bassoon for us, lowest member of the woodwind family.
她是音乐学院的在读博士,刚刚以出色的成绩通过资格考试,她马上要为我们演奏巴松管,木管乐器中声音最低沉的乐器
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The second law is going to define entropy, and is going to tell us about the direction of time, something that conceptually we, clearly, understand but is going to put a mathematical foundation on which way does time go.
第二定律定义了熵，它告诉我们,时间的流向，虽然我们清楚地,知道这个概念,但还是要为时间流动的方向,建立一个数学基础。
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the whole section of the essay in which he's talking about classicism and which he later calls "tradition" is meant to suggest that we really can't merge horizons effectively unless we have a very broad and extensive common ground with what we're reading.
他花了一整个部分来讨论古典主义,他后来称其为，“传统“，是想要暗示,我们不可能有效地合并视界,除非我们对于我们的所读,有着极广的认识。
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So before long, we'll see, especially for problems that we can't allocate an int every time we want to store something, because what if we want to store 140,000 English words.
所以不久后，我们将看到，特别是对于,我们不能为int分配内存，每次我们想要,存储一些东西时，因为当我们想要,存储140，000个英语单词时。
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Now, I've not given you any other example besides the displacement vector, but at the moment, we'll define a vector to be any object which looks like some multiple of i plus some multiple of j.
除了位移矢量之外,我就不再举其他的例子了,但是现在我们要定义一个矢量,可以表示为 i 的倍数加上 j 的倍数
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The reason I want to point this out to you is, if we go back up to the kinds of data objects we started with, floats, ints, strings, they actually behave the same way.
我要为大家指出这一点的原因是，如果我们想一下以前讲过的,数据类型的种类，浮点数，整数，字符串，它们实际上有相同的行为方式。
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Whereas in molecular orbital theory, what I'm telling you is instead we understand that the electrons are spread all over the molecule, they're not just associated with a single atom or a single bond.
而在分子轨道理论里，我要告诉你们的时,我们任为电子分布在整个分子中,它们不仅仅是和,一个原子或者一个键有关。
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So in terms of the carbon hydrogen bond, it's a sigma bond, - because we define it -- any time we are bonding to an atom, we have to keep redefining our bond axis to whatever two atoms we're talking about.
对于碳氢键，它是sigma键，因为我们定义它-,任何时候我们有原子成键，我们要重新定义键轴方向,为我们所讨论的两个原子方向。
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So one of the things we're trying to do here is to facilitate dinners for the students at large, undergraduates and graduate students.
所以我们要做的其中一件事是,为大部分学生提供晚餐，包括本科生和研究生。
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