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And then we're going to turn to the question of efficiency. How do we measure efficiency of algorithms? Which is going to be a really important thing that we want to deal with, and we'll start it today, it's undoubtedly going to take us a couple more lectures to finish it off.
然后我们会回头继续讨论效率问题,我们如何计算算法的效率？,我们处理这些问题的时候,最重要的事情是什么？,我们今天要去讨论这个问题，毫无疑问我们要用,挺多节课来学习这个。
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It's constant pressure. OK, so now, last time you looked at the Joule expansion to teach you how to relate derivatives like du/dV.
这是恒压的，好，上节课你们,学习了焦耳定律,以及怎样进行导数间的变换。
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And so, you know from your Newtonian mechanics, as you were learning in 8.01, the dynamic force here mv^2/r is mv squared over r.
在8。01节对牛顿动力学系统的学习中，我们可以知道这里的运动受力,就是。
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At the end of last lecture, we started introducing some of the pieces you want to do.
上节课的最后，我们介绍了我们要学习的,一些东西。
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I'll go through them briefly now and elaborate on each in the next couple of lectures,interweaving them with studies,research as well as applications.
我会先简短地介绍一下，再逐个阐述,在接下来的几节课里，会分别对它们,进行学习，研究，和应用。
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Next time we'll take a look at the Dark Ages and the world of Homer.
下一节课我们会学习,黑暗时代和荷马所在的世界
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All right, so last time we started to study imperfect competition.
上一节课,我们开始学习不完全竞争
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Wouldn't natural selection favor the people who take introductory psychology, come to my Valentine's Day lecture, listen carefully to the big three and the more interesting four, ? and then go out there and put them into practice?
自然选择会不会青睐,那些学习心理学导论，在情人节来听我讲座，专心致志听我讲影响吸引力的三大因素,和四个有趣因素，然后在生活中应用这些知识的人？
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Last time,if you remember the question that we ask, ?" the guiding question was "why positive psychology?"
还记得上节课的问题吗，最主要的问题是“为什么要学习积极心理学“
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Last time you heard about work and heat.
上节课我们学习了功和热。
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All right, now what we're going to learn next time and Bob Field is going to teach the lecture next time, is how heat and work are related, and how they're really the same thing, and how they're related through the first law, through energy conservation.
这节课就到这里,下节课将由Bob，Field讲授,我们将学习功与热量的关系，认识到它们在本质上的相同之处，并通过热力学第一定律，亦即能量守恒定律，把它们联系起来。
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