• RFI broadcast an interview with the spokesman for U.N.peackeepers in eastern Congo who said army deserters were complaining about ethnic conflict and nonpayment of salaries.

    VOA: standard.2009.08.12

  • So, if we think about the second case here where we have c n minus, now we're talking about a molecule with a net charge of negative 1.

    那么,如果我们考虑的是第二个例子,也就是氰离子,那么现在我们讨论的是一个净电荷量为负一的分子。

    麻省理工公开课 - 化学原理课程节选

  • .. I started out with the equally-weighted-- I was talking about stocks-- about n stocks that all have the same variance and are all independent of each other.

    开始的时候我讲了等权重的-,我开始时讲了股票-,几支拥有相同方差的股票,彼此间相互独立。

    耶鲁公开课 - 金融市场课程节选

  • One of the main points of contention between the Maoists and other political parties is the future of about who are currently confined in U.N.-supervised camps.

    VOA: standard.2010.07.29

  • So another way to say that is, in a sense, if we're thinking about the excited state of a hydrogen atom, the first excited state, or the n equals 2 state, what we're saying is that it's actually bigger than the ground state, or the 1 s state of a hydrogen atom.

    换句话说,如果我们激发一个氢原子,第一激发态或者说n等于2的态,我们说它比氢原子基态,或者说1s态要大。

    麻省理工公开课 - 化学原理课程节选

  • The U.N.refugee agency reports deadly clashes between government forces and rebel groups have forced about one-quarter of a million Somalis to flee the capital, Mogadishu since May.

    VOA: standard.2009.09.26

  • If you look at the ground state in two different systems -If you look at the ground state which is n equals one, think about this, if I increase the proton charge, the Coulombic force of attraction is greater.

    如果你观察两个不同系统的基态,当你观察n,等于1的基态时,试想一下,如果我增加质子电荷,相互吸引的库仑力就会更大。

    麻省理工公开课 - 固态化学导论课程节选

  • North Korea has said punitive U.N.action would bring about the collapse of the Chinese-sponsored six-party talks, in which North Korea agreed in principle two year ago to scrap its nuclear program in return for energy aid and diplomatic benefits.

    VOA: standard.2009.03.25

  • I've got to test to see if I'm in the base case, and if I'm not, then I need to move a tower of size n minus 1, I need to move a tower of size 1, and I need to move a second-sorry about that a second tower of size n minus 1.

    首先我看看我是不是在最基本的情况,如果不是的话,我得先做一个N-1个,圆盘的移动,移动一个圆盘,然后再做一次N-1个圆盘的移动。

    麻省理工公开课 - 计算机科学及编程导论课程节选

  • That's why in the earlier models of the atom, they're not horrible to sometimes think about just each n value as a little ring around.

    这就是为什么在早期原子模型中,人们没有感觉到把每一个,n,都想象成,一个绕核的小圆圈有什么不妥。

    麻省理工公开课 - 化学原理课程节选

  • And when you talk about n for an orbital, it's talking about the shell that shell is kind of what you picture when you think of a classical picture of an atom where you have 1 energy level, the next one is further out, the next one's further away.

    当你们谈到,某个轨道的n时,你们说的是壳层,壳层就是,你想象,一个原子,的经典图像时的场景,你有一个能级,下一个再更远的地方,再下一个又更远。

    麻省理工公开课 - 化学原理课程节选

  • So, for example, if we're talking about the n equals 2 state, all of these four orbital descriptions are going to have the same energy.

    例如,当我们说n等于2的态,所有这四个轨道的能量,都是相同的。

    麻省理工公开课 - 化学原理课程节选

  • So this is not even thinking about the other electron shielding, just if we think of the fact, all we need to think about is that the effect of going to a further away n n as we go down the table.

    到现在我们甚至还没有考虑,其它电子的屏蔽效果,即使我们要考虑这个因素,我们需要考虑也就是,沿着周期表的某一列往下走,距离会逐渐变远,将起最重要的作用,actually,dominates,这一结果所产生的影响。

    麻省理工公开课 - 化学原理课程节选

  • So finally, if we talk about our last example of when n is going to be equal 2, l -1 and then minus 1 for m.

    最后我们要讲的,这个例子,是n等于2时,等于1,we,can,have,2,,1,for,l,而m等于。

    麻省理工公开课 - 化学原理课程节选

  • We can plug this in further when we're talking about the visible part of the light spectrum, because we know that for n final equals 2, then that would mean we plug in 2 squared here, so what we get is 1 over 4.

    当我们讨论可见光谱的时候,我们可以把这个代进去,因为我们知道n末是等于2的,这意味着我们可以。

    麻省理工公开课 - 化学原理课程节选

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