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The fast-paced sport of ice hockey is thrilling when there is a tightly-played contest, but that is not what spectators observed in each of the opening women's games contested by Canada and the United States.
VOA: standard.2010.02.15
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Joule actually did this experiment, and he observed that for the gas expansions that he could do, that the temperature did not increase measurably.
事实上焦耳的确做了这个实验，他做到了,他能达到的最好实验要求，发现在可测量范围内没有观察到温度上升。
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Let's call someting invisible not only it can't be seen, not only it can't be observed, but it can't be detected at all.
让我们把一些不仅是看不见的,不仅是观察不到的，而且是完全检测不到的，东西称为无形的。
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So, Lewis structures are really a model for a way to think about what the valence electron configuration is, and as I said, it's not based on quantum mechanics, it's something that Lewis observed far, far before quantum mechanics were discovered.
路易斯结构实际上是一个用来考虑价,电子排布的模型，而就像我说的，它并不以量子力学为基础，而是路易斯在以前发现的,在量子力学出现很早前。
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So you recognize patterns and then develop a model, and most desirably a quantitative model A quantitative model that explains the observations, obviously.But what Mendeleev did was he came up with a model that not only explained what we observed.
所以你们得到这些模式，发展成一个模型，和最令人向往的定量模型,一个定量模型明显地解释所有的观察结果，但是门捷列夫做的是,他提出的模型不仅解释了,我们观察到的东西。
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Then he observed, through time, after subjecting pigeons to this torture for some time -it might be not approved by--it's not really torture, it's like dieting or something, you've all lived through that, right?
随着时间流逝,他还观察,在这酷刑实施了一段时间后,也不能真的说是酷刑,其实有点像节食之类的,你们很多人也节食过,对吧
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but it's not invisible if we mean definition No. 2 can't be sensed. Can't be observed.
但如果取第二个定义它就不再无形2,无法感知，不能观察。
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So even if we grant that what Socrates meant by invisible was can not be observed, we still have to say with Simmias , you know, fourth is just not true.
所以即使我们认同苏格拉底,指的无形是不能被感知，我们仍旧站在西米亚斯这边，第四点是不正确的。
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And He2 plus is observed in helium plasmas at high pressure, He2 but not neutral He2.
因此He2+能在高压的氦气等离子体中,被观察到，而不是中性的。
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