But now, what happens if, instead we look at what happens when we go to some state one to some other state two and it's the pressure. Or the volume, that changes.
但是现在,我们看看如果,我们关系从状态一变化到状态二时,体积或者压强发生变化。
But if you look at the amount of money that the club makes from Asia, it's huge.
但是,如果你看一下俱乐部从亚洲挣的钱,真是巨大的一笔呀。
But if you set out trying to implement this whole story line at once, if you set out trying to implement a cookie love story, it's just not gonna fly.
但是如果你一开始就想一次啃掉整块蛋糕,譬如你一开始就想,完成这个饼干人的爱情故事,你会发现这是行不通的。
You'll learn a lot more about this if you take organic chemistry, but, In fact, you can then go on and make a bunch of other different kinds of very interesting molecules.
如果你选了有机化学课,你会对它有更多的了解,但是,实际上,你可以继续制造出一堆,其它不同类型的有意思的分子。
So, again, there could be constants in here, but just to give you a sense of this.
但是这只是让大家去有个印象,如果我一秒钟运算十亿次。
But it's always minding that team dynamic because at the end of the day, we're just a group of people working on one single goal If we can't step in a cohesive coordinative fashion, then we're going to trip all over the place.
但是团队动态需要始终放在心上,因为当这一阶段结束后,我们就会成为一群人在为同一个目标奋斗,如果我们不能成为一个相互协调相互统一的整体,那我们就会东扑西扑。
In other words, if you look too closely at a picture or if you stand too far away from it you don't see it clearly it's out of focus but if you achieve just the right distance from it, it comes into focus.
换句话说,如果你站得离一幅图画太近,或太远都无法看清它,它在焦距之外,但是如果你站在合适的位置上,焦距就对准了,画就清晰了。
And so you--of course, if you do disagree I think you're mistaken, so I'll think of you as denying the facts, but all right, that's a possibility.
所以你,当然如果你不同意,我认为你错了,所以我会认为你否认事实,但是没关系,那是一种可能性。
Well, sometimes you divide up the land equally, but if that land continues to get smaller and smaller, it will not sustain an additional person, not to mention additional family.
一种做法是,平分耕地,但是如果人口越来越多呢,那平分的田地就不够一人所需,更不必说整个家庭了
Of course, we have to also know how to plug in the numbers so we can pass all the tests, but it's good to understand the nature of the edifice set up by Newton.
当然,我们首先要知道怎么代数字,这样我们考试才能过关,但是如果能理解,牛顿的这一伟大杰作的本质就更好了
If one were faced with starvation, then seeking out fat as we discussed before, is a pretty good idea, but if one is not deprived of calories, then having fat may not be so helpful.
如果一个人面临饥饿,像我们之前讨论的去寻求脂肪,是个好主意,但是如果一个人不消耗热量,那么摄取脂肪就没什么用了
So, for example, if you're the kind of person, which is I have to say all I ever was, if you're the kind of person who can kick the ball fairly hard but not very accurately, then it actually might change these numbers.
比如你是这样的一种人,我也不得不承认我以前也是这种人,如果你是那种能够大力抽射,但是精准度不高的人,那这些数据对你就不太准了
We're not going to get into that 'cause that takes us into heavy-duty music theory, but it's--if we don't have root position then we've got some other note of the triad in the bass, and we've got some kind of chord inversion, so that's what that particular term means up there.
我们就不深究这个问题了,这是一个冗长的音乐理论,但是如果没有了原位,三和弦的低音被另一个音所替代,这就是一种和弦转位,这就是这个词在这里的意思。
You can only drive one car at a time and if you have five cars-- well I mean that's kind of-- all right you could have five cars and you could drive a different one everyday, but it's starting to seem a little ridiculous, right?
你只能一次开一辆车,而且如果你有五辆车,我的意思是那种...,好吧,你能有五辆车,而且你可以每天开不同的车,但是这有点荒谬,不是吗
So, if you were to lose half your brain, the other half can actually do a lot but some things are more prevalent and more powerful in one part of the brain than the other And I want to show you a brief film clip from "Scientific American" that illustrates the differences between the hemispheres, but before doing that,I want to provide some introductory facts.
如果你失去了半个大脑,另外一半其实也可以完成很多功能,但是某些功能是存在单侧化优势的,我给你们播放一段短片,来自于《科学美国人》,它解释了大脑两半球的功能差异,但在此之前,我想先做一些介绍
So, for example, if we think of the fluorine minus case, would you expect fluorine minus to be larger or smaller than neutral fluorine? Okay. I heard mostly larger, but a little bit of a mix in there, and it turns out that larger is correct.
比如,如果我们来考虑一下负一价的氟离子的话,大家认为它大一些还是小一些?,对比于比中性氟原子,好的,我听到大部分人说大一些,但是也有一些不同意见,而正确答案应该是大一些。
As I say, red tends to be chosen, but then if you get lab experiments showing that that particular color of gas blue is somehow or another sort of more invasive of your consciousness than red is, then you move away from the arbitrariness of the choice of red as a color.
所以人们就倾向于选择红灯,但是如果你想用实验证明,比如说烟蓝色或者,其他任何另一种颜色比红色更加醒目,那么你就忽视了颜色选择上的任意性。
And so if you are a bit of a geek and would like to play net/aces with this you can go to cs50.net/aces and I don't think Willie will give it to you to keep but you can borrow and play for some amount of time in exchange for some feedback on it.
所以,如果你有兴趣并想玩玩这个,那么你可以访问cs50。,但是我觉得Willie不会让你保管它,你可以去借,然后玩一段时间,但作为交换条件,你需要反馈一些意见。
Again, we reserve the right to move people around if we have to, just to balance load, but we want you to find something that fits your schedule rather than ours.
再说一遍,如果必要的话,我们保留转移你们的权利,只是为了平衡每节课的人数,但是我们希望你们能找到,比适合我们更适合你们时间安排的课时。
If I went on and told you what the different incident light was, and what the electrons were ejected with, and then you could look up the ionization energy for the particular different elements, you should be able to actually determine exactly which element it is, but just with the information given, we can only narrow it down to these choices here.
如果我继续告诉大家入射光源是什么,出射电子的动能是多少,那么你可以去查一查,以上各个元素的电离能,这样你就应该能确定,这个元素到底是哪个,但是只凭题目中的信息,我们只能把范围缩小至以上几种元素。
It's okay to stick around for a while, but if the high point of the story occurs in chapter 2 and then there are another 67 chapters after that, you think, this was not a well-constructed novel.
有一段下跌并没有关系,但是如果故事高潮在第二章出现2,后面还有67章,你会觉得这部小说结构不好。
So let's take a look then at somewhere where this is actually a useful thing to know so this is compare1.c. So, in compare1.c I've stripped out the comments in my version but in your version you do have comments for reference and it's actually pretty self-explanatory if you just read through the code.
那么再然我们看一看,一些有用的东西,这是compare1。c,所以在compare1。c中,在我的版本中,我吧注释去掉了,但是在你们的版本中是有注释的,这是相当容易理解的,如果你通读这段代码。
How would we go about, I mean I don't want to do it because I'll probably get it wrong, but if I wanted to solve out for this X and the Y, since this is a QR class, let's just talk about it a second.
我们怎么解呢,我的意思是我现在不会去计算,因为我可能会算错,但是如果你真的很想解出X和Y的值,介于这是一节需要快速反应的课,那我们花些时间来探讨一下吧
But that little short hand there is doing exactly the same thing. It is adding that value into some digits and putting it back or signing it back into some digits. And I'll walk through that loop and when I'm done I can print out the total thing does. And if I do that, I get out what I would expect.
加上得到的这个数的,但是这个缩写声明其实是进行了同样的操作,它把我们得到的这个数加到一个数上面去,然后用和对这个数进行了重新赋值,在循环中会去遍历字符串,当完成循环后,程序会显示数字的总和,如果我运行,这个程序的话,我会得到我期待的结果。
It's always a good first approximation, because you need to start somewhere in terms of drawing Lewis structures, but then if you go and figure out the formal charge and you just have lots of charge separation or very high charges, like a plus 2 and a minus 2 and a minus 1 all different places in the atom, what it should tell you is maybe there's a better structure.
它总是一个好的第一近似,因为在画路易斯结构的时候,你总需要一个起点,但是如果你在算出形式电荷之后,发现有很多电荷分开了,或者说有很高的电荷,比如有一个正二,一个负二,还有一个负一1,在原子的各个地方,这应该就是在告诉你,或许还有一个更好的路易斯结构。
And then one of the things that I suggested was that if we could figure out some way to order it, and in particular, if we could order it in n log n time, and we still haven't done that, but if we could do that, then we said the complexity changed a little bit.
这就涉及到了排序,如果可以想出一种来将其进行排序,甚至可以在n,log,n的时间内完成,虽然目前我们没做这件事,但是一旦开始做这件事,那么复杂性就是发生一些变化。
So, if you can flip your lecture notes over and just write on the blank space, we're going to cover electronegativity first here, and specifically, you can go back and fill this in to your lecture 9 notes, if you want to stay organized, but I just suggest just writing it on lecture 10 notes now and going back.
因此,请大家把讲义翻到背面,就在空白处做一下笔记,我们要先讲一讲电负性,特别提醒一下,大家可以,回到第九课的讲义并把这些记在那里,如果你想保持条理性的话,但是我建议大家先写在第十课的讲义上,回去再记到第九课的讲义上。
Often a good thing to start with is to put the lowest ionization energy atom in the middle, and if you don't have charge separation then go with that structure, but if you do find you have a lot of separation, such as the case in negative 2, positive 2, and minus 1, then you want to say wait a second, this is really bad in terms of formal charge, let me go ahead and see what other options I have here.
通常一开始把电离能最低的原子,放在中心位置就很好了,如果你发现电荷没有分开,那么这个结构就没问题了,但是如果你发现有很多分开的电荷,比如这种情况,有负二,正二和负一,那么你会想要说等一下,从形式电荷来看这很不好,让我去看看其它可能的选择。
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