The leaders of ExxonMobil,Shell, ConocoPhillips and Chevron, as well as BP America, testified before a House of Representatives committee Tuesday.
VOA: standard.2010.06.15
So if we actually go ahead and multiply it by the volume of our shell, then we end up just with probability, which is kind of a nicer term to be thinking about here.
乘以壳层的体积,我们就得到了概率,在这里从这个角度,理解问题更好一些,如果我们考虑的是。
So if you think of a shell, you can actually just think of an egg shell, that's probably the easiest way to think of it, where the yolk, if you really maybe make it a lot smaller might be the nucleus.
可以把它想成,个蛋壳,这也许是,最简单的思考办法,蛋黄如果,缩小非常多倍的话,就可以想象成核子。
That's how I'm trying to play him and I think he's coming out of his shell a bit in Eclipse."
VOA: standard.2010.07.07
We'll start up a shell and we'll try it. All right, we'll just get out of what we were doing here.
我们开一个shell然后试试,先退出现在的这个来。
If you took a 15 inch artillery shell moving at the velocity it typically goes at, and take that amount of kinetic energy versus the resistive capacity of a sheet of tissue paper, that's the scale that we're looking at here.
如果你有1个15英寸的炮弹,按照经典的速度移动,会消耗大量的动能,抵抗来自于一张薄纸的阻力,这就是我们在这儿看到的尺度。
Now, we get to draw some lessons out of this thing, so everybody who's feeling a little bit shell shocked from having been doing algebra and calculus and drawing pictures and feeling like they've been cheated into taking a class that looks far too much like economics, calm down we're going to actually talk right now.
下面我们从中总结点经验出来,那些因为代数和微积分计算还有绘图,而感到十分不爽的同学,你们是不是感觉被我忽悠了,才会选这门一点都不像经济学的课啊,稍安勿躁,我们马上切入正题
And he gave a very good analogy in saying, "It was almost as incredible as if you'd fired a 15 inch shell at a piece of tissue paper, and it came back and hit you."
他还打过一个很好的比方:,“这就像是,你用个15英寸果壳,打到面巾纸上被弹回来打到你,一样不可思议,“
shell What I have here is a Python shell, and I'm going to just show you some simple examples of how we start building expressions.
好,这是一个Python的,我会给大家看一些,关于写表达式的简单的例子。
This should make sense to you, because they don't, in fact, want to gain another electron, because that would mean that electron would have to go into a new value of n, a new shell, and that's really going to increase the energy of the system.
这对大家来说应该容易理解,因为它们实际上不想得到另一个电子,因为这意味着这个电子不得不,到一个新的,n,值更大的壳层上去,这将会增加系统的能量。
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。
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