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Diatomic mean it's di atomic, it's made up of two atoms, and homonuclear means that those two are the same atoms.
双原子意味着它是两个原子，它由两个原子组成，同核意味着这两个原子时相同的原子。
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And we can actually better visualize this if we plot how that energy changes as a function of internuclear distance.
而我们就能更清楚地看到这些，如果我们画出,能量随核间距的变化曲线。
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You can start from one nucleus and go to the next nucleus, and there are no zero planes, no nodes, nothing.
你可以从一个核出发,看向另一个核，中间没有零平面，没有节点，什么也没有。
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We have theories--mathematical theories-- that lead us to devise financial structures, which are complicated devices just like engines or nuclear reactors.
金融学中的理论,数学理论,能帮助我们构造金融工具,金融工具就像发动机,或者核反应堆一样,都是复杂的工具
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And again in one of the functional magnetic insonance image experiments, we could ask Mike to examine faces verse other things.
与在一个功能性核磁共振成像试验中一样，我们告诉迈克去仔细看人脸和其他东西。
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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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which of course has relationships to India's sort of...armaments and its newclear industry... rather... -India has newlear bombs.
当然这也跟印度的,军事实力相关,还有其核工业。,非常。。。，-印度有核炸弹。
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Studies using imaging techniques like CAT scans, PET, and fMRI, illustrate that different parts of the brain are active during different parts of mental life.
应用电脑断层扫描,正电子发射断层扫描,以及功能性核磁共振成像,等成像技术的研究,表明不同的心理活动,会导致不同大脑区域的激活
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We know our brain today can actually change through MRI studies since 1998.
自1998年后通过核磁共振研究我们知道大脑可以被改变。
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The MRIs per capita is about half of that of United States, in Britain, which also has a government health program, there is only about a fourth in the United States.
加拿大核磁共振医疗设备,的人均使用量,只有美国的一半，在英国，也有一个政府医疗体系，只有美国的四分之一资金。
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So, she is interested in how this molecule, gemcitabine, inhibits an enzyme. So, to do those studies, she needs to know a lot of the stuff on this list.
她对这个分子，二氟脱氧胞嘧啶核苷怎么抑制酶很感兴趣，要做这些研究。
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So, when we think about a bond length, this is going to be the length of our bond here, that makes sense because it's going to want to be at that distance that minimizes the energy.
因此，当我们考虑一个键的长度的时候，这就应该是我们的键长，这是合理的,因为体系会在核间距达到这一距离时,能量到达最小值。
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And, it involves a single electron orbiting a positively charged nucleus.
包含了一个单独的电子轨道,一个带正电荷的核。
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So it's unlkely that there will be a nuclear confrontation ? between India and Pakistan?
所以印度和巴基斯坦之间,不太可能,出现核对抗了？
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Typically, these are recent imaging methods like CAT scan and PET scan and fMRI which, as I said before, show parts of your brain at work.
通常是应用现代的成像技术来进行研究,比如电脑断层扫描,正电子发射断层扫描技术,以及功能性核磁共振成像,正如我之前所说,这些技术可以让你看到大脑的活动区域
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An experiment called functional magnetic resonance imaging as illustrated here.
有一种试验叫做功能核磁共振成像。
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Nuclear power, for example, may be our salvation when we run out of oil--or virtually run out of oil-- it seems to be coming up over the next several decades-- we're going to have to do that, we're going to need nuclear power.
比如说核能,在石油资源枯竭,或快要枯竭的时候,也许再过几十年,这一天就会来临,核能可能成为我们的救世主,那时我们就需要核能源了
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So these devices, when I was a youngster, were colloquially known as "atom smashers", because they have the capacity to actually break these and have them reform.
这些设备，当我还年轻的时候，它们在口语中被叫做核粒子加速器，因为它们有能力,将这些破碎并重新形成。
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If we're talking about a single bond, we're talking about 2 orbitals overlapping in the internuclear axis.
如果我们讨论的是单键，我们讨论的是两个轨道,在核间轴中重叠。
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OK, so all I do is I take into account that I've got all the positive charge, whatever it is, it's a nucleus.
我做的全部是考虑,我得到所有的正电荷，无论是什么，都是一个核。
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According to this theory, the atoms consist of a positively charged nucleus surrounded by a stream of electrons kept together by attractive forces from the nucleus.
根据这个理论，原子由一个带正电荷的核组成,由于来自核的吸引力,电子流围绕在核的周围。
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And so it has what? In contrast to the sigma, it has a nodal plane containing both nuclei.
这是什么，和sigma相反，它是包覆在核上的平面电子云，有一个界面。
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Alpha particles are these helium nuclei, and they are the result of radioactive decay.
阿尔法粒子是氦核，它们是放射性衰变的产物。
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The total negative charge of the electrons is equal to the positive charge of the nucleus.
所有电子的负电荷,等于核的正电荷。
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They will smear to give you something like this where here are the two nuclei.
他们会形成这样的结构,这是两个核。
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And here is what we saw, here is our old friend - the nucleus accumbens.
这里是我们观察到的结果，我们的老朋友，-，伏隔核。
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This is the separation measured from the center of the sodium nucleus.
这就是分离,从钠核中心开始算。
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We have a helium nucleus and one electron.
我们有一个氦核和一个电子。
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If it is homonuclear they are all the same.
同核就是都是一样的原子。
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This is homonuclear and so these are nonpolar.
这是同核分子所以是非极性的。
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