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so we're going to use this concept of the path to go from the initial point to the end point.
在处理状态函数时,路径的选取。
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They take an atom of lead, accelerate it and have it collide with an atom of nickel.
他们选取一个铅原子，将其加速,让它与镍的原子碰撞。
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And we talked about a triad being a configuration of three pitches where you take the first, the third and the fifth.
三和弦是由三个音高配置成的，你们可选取第一，第三和第五个音。
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Having done that, I could do the same thing, so I suppose I take this branch, I can pick a spot like, say, this one, and look there.
再从其中随即选取一个元素，比如这一个，请注意，如果相等则结束，如果不相等的话就在它的左边或右边找。
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It chooses real pictures and it also shows beautiful drawings.
它选取了真实的图片,附有优美的图画。
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So this is what he asked them to do: Select four answers to the question 'What should a reader be to be a good reader?' "The reader should belong to a book club."
这就是他要求学生们做的：,从以下四个选项中选取问题,“读者如何才能成为好读者”的答案：,“读者应该是书友会的成员“
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You can pick your unit vectors, or what are called basis vectors, any way you like.
你可以任意选取单位矢量,或者也可以叫做基矢量,这都随便你
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The president would spend at least a half hour going over what happened overnight, what the intelligence community was picking up about threats to the country.
总统至少要花半个小时,来了解过去一晚发生的事情，了解情报局选取的,可能威胁国家的信息。
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It could be the letter understood either graphically or audibly, and the variety of ways in which one can choose a basic unit in the study of linguistics means that you need a special word for that unit, which is characteristically "the tagmeme."
它既可以以图像的方式理解，也可以以声音的方式，因为每个人研究时选取的,基本的语言学单位不一样,所以需要一个特殊的名词来指代这个单位，这就是，法位“
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Now, people--some people make an enormous jump from that and wrongly suggest that what the Greeks basically did was-- well, if you want to take the most extreme statement of it, stole their civilization from the other folks.
现在有些人,跳脱了这个定义,错误地认为,希腊人仅仅是,如果选取其中最极端的陈述,从他人那里窃取了文明
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A food frequency--by the way, you also have the issue of whether the particular twenty-four hours that a person is interviewed is representative of their diet overall, because you can imagine how much your food intake varies from day to day.
食物摄取频率,顺便说下,还有一个问题,就是在选取的24小时里,测试者,是不是对总体有代表性,因为你可以想象,每天事物的摄入量都是不同的
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Now, I wanted to go to through this just to go through one cycle quickly because we're going to be doing these all the time, and the importance of the fact that the path doesn't matter, and you can always connect things together in a way, whatever you want.
我使用这种,利用热力学循环的推导方法的原因在于,今后我们，将经常使用类似的方法,大家要记住路径是无关紧要的，可以随意选取一条路径,来连接两个态。
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That is the good news.The bad news is there isn't a text that fits this syllabus, so we choose readings from various sources.And the text that I have chosen is the best of a bad lot.
那是个好消息，坏消息是,没有与课程大纲对应的课本，我们从很多的资源中选取阅读材料,我选的课本不过是糟粕中的精华。
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and they took their favorite part.
孩子们选取了自己喜欢的部分。
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You get to pick where it was at the initial time.
你需要选取初始时刻的位移
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Pick any two perpendicular directions Then the same entity, the same arrow which has an existence of its own, independent of axis, can be described by you and me using different numbers.
选取两个互相垂直的方向,这样同样的物体,同一矢量,并且是独立于坐标轴而存在的,可以被你和我用不同的数字来描述
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By "Present," We mean-- we will pick some part of the universe we want to study and we will ask, "What information do I need to know for that system at the initial time, like, right now, in order to be able to predict the future?"
我们所说的"现在",意思是,我们会选取客观世界某一部分来进行研究,然后我们就会问,我们需要什么信息去了解,初始时刻的系统,比如现在,进而能使我们能够预测未来呢
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and I pick something reasonably simple.
我选取了一些适度简单的值。
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And I keep cutting the problem down.
那么我应该选取数组中的哪个点呢？
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I picked for it two dimensions as the standard way to explain it.
我选取二维的情形作为标准模型来讨论
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x and y can be whatever you like, but I picked a very special example You should go back and remember what we did.
你可以任意选取 x 和 y,但我这里讲个特例,你们应该回忆一下上节课的内容
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The free-body diagram, it says you can pick any one body that you like and apply F = ma to it, provided you identify all the forces acting on that body.
所谓隔离法,就是说你可以任意 选取一个物体,分析出它所受的所有力后,单独对其运用 F = ma 进行计算
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It's not enough to say these are the components of the vector; you've got to tell me, "I am working with i and j, which I define in the following manner."
所以,只说"这些是某矢量的分量"是不够的,你还得告诉我,"我选取的基矢是 i 和 j,它们是这样定义的"
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I mentioned something of increasing importance only later, which is that you are free to pick another set of axes, not in the traditional x and y direction, but as an oblique direction.
后来我又讲了更重要的知识点,你可以随意选取另外一个坐标系,不再是传统的 x 和 y 方向,而是倾斜过的方向
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Quite often, it's natural to pick x and y in a certain way, because starting a projectile near the Earth, it makes sense to pick the horizontal as x and vertical as y.
我们经常会很自然地选取 x 轴和 y 轴,因为如果在地表附近做抛物运动,我们通常以水平方向为 x 轴,竖直方向为 y 轴
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