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Now, to get to the number of neutrons, what we do is go up here to the upper left.
现在，看看中子数，我们要做的，是看到这左上方。
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Here you just sign up if you want to go.
在这儿，想参军你就报名。
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OK. Having done this now, I can simply go ahead and run this, and in fact if I go up here to run, you'll see I've got both an option to check the module, though in this case I'm just going to run it.
好，讲完了这些，我可以去执行程序了，实际上如果我在这里运行，你们会看到我同样得到了,一个可以同时检查模块的选项，虽然在这个例子中我就是直接去运行程序了。
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You can also go up here, you can go beyond 100% stocks, you can have 150% stocks in your portfolio.
你也可以往上看，You，can，see–,可以取到超过100%的股票，在投资组合里你可拥有150%的股票。
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And so what you're going to end up with is, well, let's go over that. Here is sodium and chloride.
你将以之结尾，好吧，我们跳过那个，这是钠和氯。
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Okay. Now we're going to go on and talk about a woodwind instrument here so Lynda, come on up.
好,我们继续,谈谈木管乐器,琳达请上来
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PROFESSOR: So, does anyone have any questions about the set up here, does it make sense what we're looking for the bar to go back once we make some progress.
教授：所以，有人对这套装置,有疑问吗，一旦我们,取得了一些进展,我们看到这个棒又返回来。
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Well, let me come up with a sample set of elements here and let me go ahead and just get some fresh white board space.
下面我用一个元素的样本集来说明,我先找一些可用的白板空间。
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You start here and you fire a projectile It's going to go up and it's going to come down.
从这开始,你抛出一个物体,它将上升至一定高度然后落下
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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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And the Hund Rule says try to go for unpaired electrons I will put one up here.
而且洪特定律试图在不成对电子身上应用,我举个例子。
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So, you've got to go up the alphabet here.
因此,必须替换字母
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3 >> Okay. I'll just go over here to y and get the number 13 set up and then take the wand of dereferencing and just, whoa.
>，好的，我将到y这里，然后存储数字,然后使用魔杖，哇哦。
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So let me go back up here, and I'm going to comment out that region, and let's uncomment this region.
那么让我们回到这里，我会为这个区域添加注意，让我们先取消注释。
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global c Well, let's go ahead and open up global dot c, or you can follow along up here.
好的，我们继续打开，或者你们可以跟随这里个地方。
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And all we need to do is go over here now and fill up our octets.
而我们所需要做的就是到这里来,把我们的“八隅体“都填满。
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I can get this to show us how far up we are supposed to go, by placing it on some kind of grid here," and this is this--as I said before, the beginning of the first graph in the history of the West.
我可以通过将它放置在这样的网格中,来表明我们的声音应该有多高,而这就是,正如我以前所说,西方历史上最早的图示法
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I have no idea where that is other than to know that it's up so let's just go ahead and assume that everything over here is the heap so what has just happened?
我不知道它在哪里，只知道它在上面,我们假设这里所有的东西是堆,那么会发生什么呢？
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But if it is not, it's going to print out a message here saying, you screwed up, somewhat politely, and it's going to go back around. So it'll just cycle until I get something of the right type.
但是输入不是浮点数的话,我这里就会显示一个消息说，你搞砸了，该稍微有点礼貌吧？,然后我们继续执行循环,一直到得到正确类型的输入。
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What does that say? It says if in the code up here I get an exception of that sort, I'm going to go to this place to handle it.
这意味着如果在代码中,我得到一个这样的异常,我能到这里来处理它。
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Let me go ahead and pull up this little example here.
我再说下这个小例子。
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For instance, let me go ahead and open up masquerade, and I'll need Barry to help here, if you don't mind. Let me hit play.
比方，让我上前揭开面具，如果你不介意的话我需要Barry帮下忙，我玩下。
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So we have two electrons in our bonding orbital, but because we use the same rules to fill up molecular orbitals as we do atomic orbitals, so the Pauli exclusion principle tells us we can't have more than two electrons per orbital, so we have to go up to our anti-bonding orbital here.
所以在成键轨道上有两个电子，但因为我们用了和原子轨道时,用的相同的规则，所以Pauli不相容原理告诉我们,一个轨道上不能有两个以上的电子，所以我们需要填充到反键轨道上去。
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