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The system can be an open system, or it can be a closed system, or it can be isolated.
系统可以是开系，可以是闭系，或是孤立系。
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Especially in the United States, it's a law that you have to wear your seatbelt.
尤其在美国，法律规定开车时必须系好安全带。
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The thermos, with the lid on top, It's not a open system your coffee is going to stay warm or hot in the thermos.
顶部盖了盖子的热水瓶，不是开系,你希望你的咖啡在热水瓶里面保持温暖,或滚烫。
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So, remember when you're looking at your periodic table, don't forget about the lanthanides, sometimes they come into play.
因此，要记住，当你在看元素周期表时，不要忘了镧系元素，有时候也会用到它们。
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For example, if I isolated this one called the myeloid cell, it's capable of forming red blood cells, megakaryocytes and neutrophils.
比如,如果我分离出一个髓系细胞,它就能生成红细胞,巨核细胞和嗜中性粒细胞
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And for Americans, all our democratic experience and do I have to put a tie on for this event or not?
美国人也如此,我们都参与民主政治,知道在什么场合需要系领带,比如现在
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Already from the very opening lines we see in this a clue to the theme that is going to follow.
打从一开始,我们即看出这条线索,连系到即将发生的主题。
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As soon as lanthanum takes that electron, this level rises ever so slightly, and then we jump down here and fill in the lanthanide.
一旦镧得到了电子，这一层就会稍稍上升，然后我们向下填一下镧系元素。
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I also was a grad student here in the '80s, in the Religious Studies Department.
980年代，我曾在此攻读硕士学位，在耶鲁的宗教研究系。
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One could similarly have a course devoted to the problem of free will.
我们系同样还开设有一门课,专门讨论自由意志问题
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The libertarian says it may be a good thing if people wear seatbelts but that should be up to them and the state, the government, has no business coercing them, us, to wear seatbelts by law.
自由主义者说，系安全带也许是件好事,但这应由人们自己作主,政府没有资格,用法律来强迫人们系安全带。
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Bind them as a sign on your hand and let them serve as a symbol on your forehead; inscribe them on the doorposts of your house and on your gates.So love and loyalty to God is the foundation of the Torah but Torah is the fulfillment of this love and loyalty: studying it and observing it and teaching it and transmitting it.
也要系在手上为记号，戴在额上为经文,又要写在你房屋的门框上，并你的城门上,那么对上帝的爱和忠诚是律法卷的基础，但律法卷,是这种爱和忠诚的实现：学习它，观察它,教授它，传播它。
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And a lot of the strikes that you see in high schools and in-- I better get to my lecture,but-- you see in high schools and even in middle schools, have to do with the State,somebody saying, well we're going to take away two-hundred teachers in your department, or we're going to maintain a curriculum that doesn't seem to make any sense.
在高中里可以看到很多罢课,我最好回到正题,但还是再讲一点,在高中,甚至在初中有很多罢课,为了反对政府的某项规定,比如说要在这个系减少两百个教师,或者主张一份,完全不合理的课程安排
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Let's say your little brother is just learning how to tie his shoes.
假设你的弟弟正在学习怎么系鞋带。
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and you can find the department the professor is in,
然后找到教授所在的系，
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The Earth seems to be a pretty good inertial system, because on the ground, you leave something, it stays there.
地球看上去是个不错的惯性系,因为什么东西放在地上,都会保持静止
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Then she proceeds to explain that there's lacing over, on the one hand, bowling shoes laced under and lacing under, on the other hand.
于是她接着解释这是足背系带的保龄鞋，那是。
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Those are two slightly different things which I won't go in to right now.
自然主义的特征,同时与那些作家，系出同门。
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And that was when I switched my concentration from computer science to philosophy and psychology with a single question: ? how can I become happier?
于是我将研究方向,从计算机科学转向了哲学及心理系,目标只有一个：,如何变得更快乐？
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The strategic goals are the following: course six we want to help prepare freshmen and sophomores who are interested in majoring in course six to get an easy entry into the department, especially for those students who don't have a lot of prior programming experience.
以下是关键的目标：,我们希望帮助对于通过主修,从而进入本系这条捷径,非常感兴趣的大一大二生，尤其是那些,以前没有编程经验的人。
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He spent his entire career at Yale and he wrote-- He was Head of our social sciences department, before we had separate departments of economics and psychology, etc.
他将毕生奉献给了耶鲁,而且他写了...,他是社会科学系的主任,社会科学系是,经济学系与心理学系等系的前身
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system is the opposite of the open system, no mass and no energy can flow through the boundary.
孤立系与开系正相反，没有质量或能量,能流过它的边界。
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All right. The other thing I have to teach you is matter-energy interaction so that we can see how the Balmer series validates the Bohr model.
好的，我要教你们的里一个知识点是,物质能量的相互作用，我们可以见证,巴尔末线系是怎样证实波尔模型的。
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The number of moles stays the same a closed systems, gas doesn't come out.
摩尔数保持不变,因为是闭系，气体不会跑出去。
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Pluripotent stem cells that are capable of self-renewal to generate themselves and are capable of dividing into both bioloid and lymphoid progenitor cells.
多能干细胞,是能够通过自我更新进行自我生成的细胞,也能分化成髓系祖细胞,或者淋巴祖细胞
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And indeed, as it happens, in our department this very semester there is such a class devoted, all semester, to the topic of consciousness.
当然,这也的确是如此,我们系在这一学期,就有这么一个班,花了整整一个学期,来讨论意识问题
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That's passing laws that protect people from themselves, seatbelt laws, for example, or motorcycle helmet laws.
即制定保护人们免受自身行为伤害的法律，诸如系安全带，骑摩托车带头盔的法规。
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It is, above all, speech that in a way, ties us to others of our kind.
而最重要的是辩论能力，将我们和其它同伴系在一起。
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Pagan religions contain theogonies, birth of a god, "theogony", accounts of the births of gods. Now this impersonal primordial realm, Kaufman declares, contains the seeds of all beings.
异教有神谱，神族谱系，用来记载诸神的诞生的，考夫曼认为，这个可观存在的原始领域包含了万物的本源。
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So anything that goes from a higher energy level to 2 is going to be falling within the Balmer series, which is in the visible range of the spectrum.
任何更高能级到2能级2,都是属于Balmer系，它在可见光谱中。
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