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Of course in the reversible case, you're always pushing against an external pressure, which is essentially equal to the internal pressure.
当然在可逆的情况下，外压力，总是，等于内部压力。
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And I come here and I, like right away you kind of feel like the pressure.
我来到这里，我会立刻感觉到压力。
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Let's imagine maybe instead we just immediately dropped the pressure let the system expand against the lower pressure.
现在假设,我们很快地降低压力,让系统在低的外压力下膨胀。
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More importantly, they can affect blood pressure as well, the strength of your heartbeat and the pressure that your heart generates.
尤为重要的是,这也会影响血压,心跳的强度,和心脏能够输出的压力
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And so the photons hitting the wall actually put pressure on the wall, but the pressure is so low.
所以光子碰撞墙面,事实上在对墙加压，但只是压力很小。
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There's naturally a lot of pressure on Milton to make this part of the simile beautiful and striking because he's echoing not just one epic poet, but essentially he's echoing just about every epic poet.
弥尔顿自然会感受到很多压力,必须得把这个比喻写的美丽动人,因为他不仅是在模仿一个诗人，实际上每个人史诗诗人都是他模仿共鸣的对象。
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The pressure points come when the issues are so close to the bone that a variety of people don't feel that they had the luxury to do that, that their interests, their commitments are threatened.
有时也有一些压力,这时话题通常比较敏感，许多人,觉得言论自由成为了一种奢侈品，他们的兴趣和信仰都受到了威胁。
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Yeah, it's the pressure of the paper.
是，这是纸的压力。
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So you can imagine that adds real excitement and energy to the class and puts a little bit pressure on the professors to make sure that we have something worth coming half way around the world for.
可以想象,为课堂带去的兴奋和活力,也给教授施加了压力，我们要确保,能传授值得绕半个地球赶来学习的知识。
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Have you ever felt any pressure because of all of the intelligent people around you?
你周围的人都那么聪明，你会不会感到压力很大？
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Bush has come under mounting pressure from members of his own Party to shake up the White House Staff.
布什总统受到了,他党派内的巨大压力,让他更换白宫人员。
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It also is possible, again it's just speculation, that population pressure might well be greater in the cities that did the colonizing.
再一次,只是猜测,也很有可能,这些进行殖民的城市,人口压力相对大
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we have consumers under pressure because of their overextension of credit and they're having overpaid for houses over the last handful of years.
一些承受压力的消费者,因为过度贷款,他们不得不在过去的几年时间里,在买房子的时候花费了更多的钱。
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So some of this seems to be, you're suggesting, a kind of a cultural convention and pressure.
所以其中部分因素，你暗示了，出自文化传统和压力。
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So folks , otherwise this gets really awkward and really inaccurate quickly under pressure.
这看起来有点笨拙,好像大家有压力显得表现的不是那么到位。
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Black Boy We started this course talking about Black Boy - and the way that a whole world of pressure-- pushed on the borders of that work and actually changed its very material form.
在开始这门课的时候我们先讨论了,说了这个充满政治压力的种族矛盾激化的世界-,并且已经改变了,它的实体范畴的。
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So not only is there evolutionary pressure for me to lie to you, for me to persuade you for instance, that if we're going to have a conflict- if you are threatening me " "Don't threaten me, I am not the sort of man you could screw around with" But there's evolutionary pressure for you to look and say, "No. You are the sort of man you could screw around with.
因此，不仅存在着要求我对你说谎,的进化压力，比如，如果我们之间存有冲突-,当你威胁我时,我会说“别吓唬我，我可不是吃素“,而且还存在着要求你辨别谎言的进化压力,你会说，“不，你肯定不行。
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But I think right now I just have too much pressure on me to study.
但我现在觉得我就是学业压力太大了。
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Mr. Trichet thinks that the Fed is running dangerous inflation risks ." by cutting rates too soon in the face of Wall Street pressure."
特里谢认为,美联储降息过快,将面临来自华尔街的压力而最终身陷囹圄“
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think it's a lot of pressure because, the economic climate.
由于当下的经济环境，他们想到会有很大的压力。
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where many businesses are under pressure where they're,
很多行业面临压力，
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So the force that you're pushing down on here is the external pressure times the area.
或者压缩功的概念,在活塞上施加压力。
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Because we did work at constant pressure, and so it's just volume difference times pressure.
因为是在恒压下做功，所以功就等于体积变化乘以压力。
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You have a little more pressure in grad school, but sometimes that means when you're an undergrad your advisor will decide to put you on projects that maybe when you look at them seem a little bit silly.
那就是你们没有，要做出重大发现,或取得重大成就的压力,你们在研究生时候会有些压力,当然有时候这意味着。
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This piston is being brought out, so we expect 0 the work to be negative, negative. And we start o V2 ut with zero volume. We end up with a volume p2 of V2, and the external pressure is constant to p2.
所以我们可以想象功是负的,开始的时候体积是,最终的容积是,外界的压力恒为。
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He's under the greatest pressure of his life to do something with his talent.
他承受着一生中最大的压力,需要用自己的才能做些什么。
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They got lost in the fear or pressure performing at this high level.
在恐惧和压力下，因赛事之高,而迷失。
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As it does that it changes the volume of the heart and gives the - creates the pressure that moves blood around your body, so it has that muscular system.
这使心脏的体积发生变化,产生了足以使血液流遍全身的压力,这就是心脏中有肌肉系统的原因
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I really think by being an activist and putting pressure on that board that has done nothing really--I think eventually that will happen, hopefully Maybe we'll have one or two more questions Two more questions and then we'll wrap up.
我觉得通过做一个改革者该做的,以及对现在无能的管理层施加压力,真的--如果顺利的话那终将发生,差不多再可以提一两个问题,再提两个问题然后我们就结束。
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Yeah, well, there's a pressure to do well.
是的，总会感觉有股压力让我不断地想做得更好。
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