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"I think he ought to do what General Petraeus did and that is decide on exactly the number he needs and we debate it and the president makes the ultimate decision,".
VOA: standard.2009.08.23
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- So this commands, number two here -- can someone just quickly translate into the English what it is doing for us? Yeah?
所以这个命令，在这里的第二个-,你们谁能快速地把它翻译成,英语来说明这是干什么的吗？，请说？
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The beauty of that is now we have discovered a notion of what it means to multiply a vector by a number.
现在最美妙的就是我们就已经知道,数字乘以矢量的意义
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"When you really look deeper at what the AU is doing and what is happening at the regional economic community level, though the progress has not been what we might have expected a number of years ago, it has changed, and it is a work in progress, and next year this time we might be talking about the next summit within a very different context if we are looking at the political leadership of the day,".
VOA: standard.2009.07.02
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The absolute number that you assign to it is something that's arbitrary. You have to set what the zero is. And so there's a well-understood convention for what the zero is.
你指定给它的绝对值是有任意性的,你需要设定零点的位置,因此有一个经过充分研究的,关于设定零点的约定。
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So, if we want to figure out the formal charge on the carbon, we need to take the number of valence electrons, so that's 4. We need to subtract the lone pair, what number is that? It's 2.
如果我们想算出碳原子的形式电荷，我们需要将价电子的个数，也就是四，减去孤对电子的个数，它是多少？是二。
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As I said, what we want to do is, we want to count the number of basic steps it takes to compute a computation as a function of input size.
我刚才提到了，我们要建立，一个根据输入大小的方法来计算,一个计算过程需要的时间,建立这个方法需要几步呢？
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The difference the real difference is in what genes its expressing of the total number of genes in the human genome and therefore if it's expressing these unique this unique set of genes.
真正的不同之处是,在这些细胞中,表达的是人类全部基因中的不同基因,因此如果细胞表达的是,这组独特的基因
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So this is the percent error and what you see here is that if the number is below the zero line it means people underestimated the calories, and the bars that go above means people overestimated the calories.
这是百分比误差,你们看,如果数字低于零,这表示人们低估了卡路里,高于零表示人们高估了卡路里
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It's a secret number so that if Julius Caesar scrambled his message with the key 13, well, then the recipient had better know what that number is or realistically, -- and this is why it's kind of hard to buy -- into some of these age old algorithms, -- what would an alternative approach be to figuring out Julius Caesar's messages to his generals if he didn't know that secret number was 13?
它是一个机密的数字，以至于,如果凯撒大帝使用密钥13加密了它的消息，然后接收者最好知道那个数字是什么,实际上--这就是为什么很难,破解这些古老的算法-,有什么变换方法使凯撒大帝的将军,可以解密凯撒大帝的消息，如果他不知道,那个机密数字是13呢？
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R is going to be a fix number R times You don't know what it is right now.
等于一个常数 R 乘以,你现在还不知道它是多少
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And it takes the set of stocks to simulate, a fig, figure number, this is going to print a bunch of graphs, and I want to say what graph it is, fig mo and whether or not I believe in big mo.
我们需要一些股票才能进行模拟，很多很多的股票，我们会打印一些图，然后我会告诉你们这些图是什么意思，或者我们看到这个。
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So, now we have said go to the address stored in X, which is who knows, it's over there, put the number 42 there so what I've just drawn is this part of this story here.
那么，现在我们指明定位到存储在x中的地址，那就是把数字42放在那里,我所画的就是这一部分。
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And what he came out with when he did some calculations is that there's the radius that he could calculate was equal to this number a sub nought, which is what we call the Bohr radius, and it turns out that the Bohr radius happens to be the radius most probable for a hydrogen atom.
等于这个a0的值,我们叫它波尔半径，而,波尔半径恰好是,最容易，找到电子的地方，我们对波尔模型,不做过多的解释,这是因为。
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