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If you've got a problem that has units associated with it, do the exercise of carrying the units through because, guess what?
如果你做到一个跟单位有关的题目，请你在做题目的时候密切注意它，因为，猜猜是什么？
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We could just collect a bunch of data. For a material .What's the volume it occupies at some pressure and temperature?
对一种物质我们可以得到一系列测量数据,在给定的温度和气压下,它的体积是什么？
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Unfortunately, we now have lived with it forever, so don't think of it as actually being anything dynamic particularly. It's just a name.
不幸的是，我们现在得一直沿用这个名字了,所以别认为它指的是什么动态的东西,这只是个名字。
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Right? I've allocated a variable, it happens to be a pointer; it's still a variable, who know what's in it, right?
对不？我分配了一个变量，它碰巧是一个指针，它还是一个变量，谁知道它里面是什么？
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You're going to work out what firm's demands are going to look like for each possible price they could set.
你们要解出,公司针对每一个其可能设定的价格,它的需求是什么
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And we know what that's equal to, this is something we've been over and over, ionization energy is simply equal to the negative of the binding energy.
而且你知道它等于什么，这是我们说过一遍又一遍的，电离能就等于,负的束缚能。
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Whatever the two-handed engine is, it will smite once and smite no more.
不论双手引擎是什么，它都会不断的进行攻击。
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Then you start to wonder well what is the system and ? what is it supposed to do?
于是你开始质疑,这个系统到底是什么,还有它到底是要干什么呢？
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It's hard to explain exactly what it is, It's not getting lost.
很难解释它到底是什么，不是迷途。
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What is the mole? Mole is a more practical value, something that we can handle tangibly.
什么是摩尔，它有实际值，我们可以很明白的掌握的。
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And so we'll talk about technologies like this, where they're at, what the scientific basis of it is, and how they might be useful.
我们将讨论这门技术会应用于哪些领域,它的科学原理是什么以及,如何使他们发挥作用
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It's no use talking about the negative relationship between a red light and a green light and a yellow, white, or blue one because they all have the same value.
讲什么它是红灯，不是绿灯,不是黄灯白灯一点关系都没有,它们所代表的意义都一样。
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What makes it believable as an account of, again, ? the condition we are naturally in?
是什么使它变得让我们相信，我们是自然而然身处于这种状态之中？
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And the book just tells you that, right, in one of those palm"-- the ordinary event which is really trickery, a suggestion ; that nothing has been left to chance in the novel; nothing is ordinary.
这本书也这么告诉大家了，对了，就是在,手里的东西）看似普通的事件实则是个奸计,它是一个提醒，提醒大家这部小说里没有什么事是巧合;,任何事都不普通。
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So whatever perfect justice is, it's not one more thing in the empirical world.
所以无论完美的正义是什么,它不存在于经验世界中
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What is it? What do we talk about the world like these days?
它是什么呢,如何称呼那时的世界呢
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Whatever it is, continue to breathe deeply into your belly.
不管它是什么，继续向腹部深呼吸。
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If it's an accident, what's it an accident from?
如果是偶然事件，它的偶然成因是什么？
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But what is it?
但它到底是什么呢？
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Well what are the constraints?
它制约的是什么呢？
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Now, instead of being the cost of traveling that distance to go and buy the product, what's it going to be?
不是走一定距离,去买产品的成本,它是什么呢
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This is on purpose, because one of the things I hope you have learned to do this semester, is look up things you don't know, and figure out what they do. What they mean.
我举这个程序是有目的的，因为我希望你们这续期能学到,如何去查找你不知道的东西并，且弄懂它,们是干什么的，是什么意思。
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I'm then printing bracket one, bracket two, bracket three, bracket dot, dot, dot up until the total number of arguments, 1 whatever that may be, and it's going to be at least one because the program always has a name.
然后我打印，括号等等等，知道打印完所有的参数，不管那个最大值可能是什么，它将至少为,因为程序总是有一个名字。
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If you haven't turned it on or don't know what that thing is here we go.
如果还没用过它,或者不懂它是什么,请看下面。
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And when we're looking at the probability density graphs, it doesn't make a difference, it's okay, It has no meaning for our actual plot there, because we're squaring it, so it doesn't matter whether it's negative or positive, all that matters is the magnitude.
它的概率密度图的时候,两者没什么区别，这是可以的，它对我们画这个图，没有什么意义,因为我们是取平方，所以它的正负，无所谓，只和幅值有关，但当我们说到。
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Think of this as, this is a template for creating instances of an object.
那么上面的东西是什么意思呢？,它的形式看起来挺时髦的,好，它的意思是说。
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There's nothing in it. It's empty. It's transparent.
里面什么也没有，它是空的，是透明的。
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And, one other thing that I failed to point out, if you take a look at the energies associated with the outermost electrons, in this case, lithium, you see it's 0.5 megajoules per mole, and then what's the 6.26?
还有另外一点我忘记提到的是，如果你观察离最外层,的电子的能量，在这种情况，对于锂，你可以得到，它是每摩尔0。5兆焦，那么6。26是什么呢？
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These are going to be fairly common-sense definitions, but they're important, and when you get to a problem set, really nailing down what the system is, not more, nor less, in terms of the amount of stuff, that's part of the system, it's going to be often very crucial.
这些是,很常识性的定义，但是很重要，当你要解决问题时，务必要搞清楚系统是什么，它包含多少物质，不能多也不能少，这往往,是非常重要的。
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