The first park to charge a visitor fee was Mount Rainier in the northwestern state of Washington in nineteen hundred and eight.
VOA: special.2009.09.28
Here Aristophanes presents Socrates as an investigator and this is part of the first charge remember an investigator of the things aloft and the things under the earth and who makes the weaker argument the stronger.
剧中,亚里斯多芬尼斯将苏格拉底,描绘成是一名调查员,这是第一项控诉的部份,他调查上天下地的事物,能让无力的辩论转强。
And let's say our second electron now is really far away, such that it's actually not going to shield any of the nuclear charge at all from that first electron.
距离原子核非常非常近,我们说第二个电子处于非常远的位置,这样它不会对第一个电子,感受到的来自原子核的电荷量有任何屏蔽作用,我们最后要说的是。
With the adoption of the Convention, she notes the international community unanimously recognized for the first time in history that children are not simply the property of their parents or guardians, but are in charge of their own destiny.
VOA: standard.2009.10.08
The first is this the z effective, or how much charge is actually in the nucleus that's felt, Z or the I guess we would say the z, how much the charge is on the nucleus that holds it close together.
第一个是有效核电量,或者说实际感受到的核电荷量,又或者我想我可以说就是,使它们保持在一起的,原子核的电荷量。
We said that that second electron was so far out of the picture, that it had absolutely no affect on what the charge was felt by that first electron.
我们说第二个电子远离这张图片,这样它就彻底的对,第一个电子感觉到的电荷没有影响了,所以。
So in our first structure, we would find for the nitrogen we have a formal charge 5 minus 4 minus 2, because we're starting with 5 valence electrons, so that is a formal charge of minus 1.
那么在我们的第一个结构中,我们发现氮的形式电荷量是五减去四4,再减去二,因为我们开始有五个价电子,因此它的形式电荷量是负一。
First we need to select for actual charge.
首先我们需要根据正确的电荷进行筛选。
2 So what we end up saying is that the z effective or the effective charge that that first electron feels is now going to be plus 2.
第一个电子感觉到的有效的z或者有效电荷现在是,我们再一次将它带入我们的方程。
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