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"Then the structural engineers take that information and they use it to detail the building in terms of, is this going to be a steel structure?
VOA: special.2011.03.28
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printf And then I'm gonna use the same printf line after that to actually plop it into this formatted string.
我还是要用到,来把它转换成格式化字符串。
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And then a lot of theory like, what is dress and how do people use it to evoke emotions and stuff, so.
有很多的理念，比如什么是连衣裙，人们怎样用它来表达情感，诸如此类。
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Understand it through research as well as through the search-- through introspection, and then make the best use of it.
通过研究，探究-,通过内省来理解它，然后好好地利用。
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But then, they would also need to buy into an entire service army of people to figure out how to use it.
但之后他们也需要买入整个,服务团队的人来研究怎么用它。
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If you're writing a one line function, whose sole purpose in life is addition, and, clearly, this is about addition, well, then it's, in fact, A reasonable to use a shorter symbol like A, but I do have to specify it's type.
如果你在写一个一行的函数，它唯一的目的是,做加法，显然这是关于加法的，好的，实际上，用一个短的标识符是合理的，像，但是我必须指明它的类型。
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And the idea behind recursion I'm going to describe with a simple example. And then I'm going to show you how we can actually use it.
但是为了解释递归的意义,我想举个简单的例子,我将会给你们展示我们该如何使用它。
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So, if you use a black lamp or something and you excite something up to a higher energy level and then it relaxes back down to its lower energy state, it's going to emit a new wavelength of light, which is going to be visible to you.
如果你用一个紫外灯或别的,东西把某种分子激发到,更高的能级，然后它会掉回,到低能级，它就会释放,一个新的波长的光,这个光是可见的。
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I want to derive the last result in another way, then I will stop, and that's pretty interesting because it tells you the use and abuse of calculus.
让我用其他方法解答最后一个问题,然后今天就到这 这是一个挺有意思的题,因为它展示了微积分的正确用法和错误用法
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Is it all right then to use people?
那样就可以利用人了吗？
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But if you're trying to use that virus as a gene delivery vector and your body gets rid of it then the therapy has failed, it's ended.
但如果你想把腺病毒作为基因治疗载体,而你的身体清除这种病毒,治疗就失败了,前功尽弃了
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And you can either, like pay a subscription for a year and then you can use it as much as you want,
你可以付一年的押金，然后你可以随便怎么用，
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But the problem is if you use the word "Language" impossibly, incredibly broadly, then from a scientific point of view it becomes useless to ask interesting questions about it.
但问题是,如果你无限宽泛地使用"语言"一词,那么从科学的角度来看,探究语言就变得毫无意义了
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So what happens then we're going to use the ideal gas law. So it's approximately delta u plus delta nRT. That's a constant. That's a constant.
我们现在要应用理想气体物态方程,这个近似等于ΔU加上Δ,这是常数，这是常数。
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But then, I realized it was inevitable that I had to use it
之后才意识到，使用这个是不可避免的。
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and then, you use it to continue the statement to finish your sentence.
然后，你可以用“so ~ that”继续陈述，来完成你的一句话。
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And all we can do after we accept this nature is to first understand it through research, and then after we understand it, make the best use of it.
在接受这个本性后，我们唯一能做的,是通过研究首先来理解它，理解它后，好好地利用它。
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And then, people discover, "Well, this is interesting but how can I use it?"
之后人们发现，“恩，这很有趣但我们怎么用呢？“
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That doesn't solve the problem we had before though Then I'm going to append it, and keep the last change for future use.
这样没有解决我们之前的问题,所以我要给它加上一个值，让上一次的变化能够用到未来的例子中。
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So, it was effective, it was rapidly then introduced into general use.
因此,疫苗是有效的,它迅速得到了广泛应用
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You guys probably know that too from your days at the daycare, but I want to derive the formula and put it up, then we'll see how to use it.
你们可能从幼儿园起就已经知道这个式子了,但是我想重新推导一遍,再来看如何进行运用
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And often, if you want to make a lot of it, you have to think about the thermodynamics of the system, how fast the reactions will go and kinetics, and then whether they'll go, the thermodynamics, and sometimes then you need to adjust the reactions, maybe use a transition metal to make it go better.
这种分子就不能正常工作，而且通常来说,如果你要大量生产一个东西,你必须考虑系统的热力学，反应速率和动力学,还有反应是否会发生，热力学，而且有时候你需要调整反应的发生。
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This is very important,which is why I am doing it: "If we want to know how fast a human being can run, then it is no use to average out the speed of a "good sample" of the population; it is far better to collect Olympic gold medal winners and see how well they can do.
这话非常重要，是我作这个研究的原因：,“如果想知道人类最快能跑多快，那从好的样本中测出平均数是“,没用的;,而应该收集田径类奥运冠军的信息,看他们能跑多快。
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In C and most programming languages, if you need greater than or equal to, use greater than and then right next to it with no space put equal to, and that conjures up the same idea.
在C和大部分的编程语言中，如果你需要表示大于等于,在“>“号后边加上一个“=“,中间不要空格，那使我们联想到同样的想法。
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You take your room temperature liquid helium and you cool it with liquid nitrogen to 77 degrees Kelvin, the new, you're not quite there yet 77k unfortunately right? Then you take hydrogen you cool it would liquid nitrogen to 77, then you can use your hydrogen gas.
首先要有常温的氦气,拿液氮把它冷却到77k，那个新来的7,你不坐在那儿，对吧？,然后用液氮把氢气降温到,然后就可以使用这个氢气了，想要用氢气来做焦耳-汤姆孙实验。
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And I want to describe both the syntax, what we're doing, and then the semantics of how do we use it and what does that mean.
现在我想解释一下语法，我们在做什么,还有我们使用时的符号,以及意义。
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What is this? This is a wonderful piece of abstraction. It is saying, you don't need to know squat about what's inside the body of this function. You don't have to worry about the parameter names, because they're going to be preserved, you don't need to worry about how I'm doing it, this tells you how you can use this, in order to use it correctly. Of course, I can then close it off, and off we go.
但是这能告诉你一些信息,这是什么？,这是一段完美的抽象,它的意思是你不需要知道,这个函数的内部构造，你不必担心参数是否重名，因为它们已经被预存了,你不需要担心我如何使用它,它告诉了你你该如何操作，从而正确的使用它，当然我也可以把它关掉。
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