And again, Americans all around the country took note of this quiet,serious man who did such effective work in so many different kinds of situations.

VOA: special.2011.02.10

z So, this is what we find the actual z effective is for an electron in the helium atom.

所以这就是我们得到了实际有效的,对于一个氦原子的电子。

麻省理工公开课 - 化学原理课程节选

Finally, remember myelination, where you sort of get this fatty sheath over your neuron to make it more effective?

最后,回想一下髓鞘的形成,你会在哪里长出脂肪鞘,去包裹神经元,使得神经元更有效率

耶鲁公开课 - 心理学导论课程节选

But this increased attention does not mean anything without effective action.

VOA: special.2009.05.08

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。

麻省理工公开课 - 化学原理课程节选

"This is an evaluation instrument that is finally able to capture who is highly effective and who is ineffective and who could be doing better and could use some assistance.

VOA: special.2011.08.11

As a lot of research, especially in physics education, shows that this kind of pedagogy is more effective.

因为很多研究表明，尤其是一些物理教学领域的，这种教学方法,会更有效。

麻省理工公开课 - 媒体、教育、市场课程节选

When the mechanical properties of this new cartilage were tested, they showed that the regenerated cells were just as effective as the rabbit's naturally formed cartilage.

VOA: standard.2010.08.11

But essentially the only reason there was any way that that was an effective approach was because people basically realize "Oh this is a good idea and we agree with that as a culture."

但是，归根结底，这种方式之所以,能够取得成功，是因为,人们意识到,“哦，这挺好的，我们的文化可以接受它“,“哦，这挺好的，我们的文化可以接受它“

普林斯顿公开课 - 人性课程节选

They might end up getting cancer." Virtual colonoscopy as a screening tool is quite effective thats one of the reason why national cancer Institute recommends this as one of the screening device."

VOA: standard.2010.04.07

This cell can only be an effective barrier if there's no way to get past it.

这些细胞只有密不透风,才足以形成一道屏障

耶鲁公开课 - 生物医学工程探索课程节选

Part of the reason why I'm endorsing this market stability regulator is that there's no way we can set up a system that is both very effective in allocating resources and that is also very stable.

我赞成市场稳定性监控者,的部分原因是,没有方法建立一个,既能完全有效配置资源有非常稳定,的系统。

耶鲁公开课 - 金融市场课程节选

It is found that the most effective way of dealing with this phenomenon was actually to cultivate the positive,to cultivate personal strengths, to cultivate and identify one's passions, ? to ask a question such as "what is meaningful to me in my life?

事实证明，处理这种现象,最有效的方法是,培养积极性和个人优点，培育激情，提出这种问题“我人生中什么是有意义的？

哈佛公开课 - 幸福课课程节选

We can also think about this in terms of z effective.

我们同样可以。

麻省理工公开课 - 化学原理课程节选

So we know that we can relate to z effective to the actual energy level of each of those orbitals, and we can do that using this equation here where it's negative z effective squared r h over n squared, we're going to see that again and again.

我们知道我们可以将有效电荷量与,每个轨道的实际能级联系起来，我们可以使用方程去解它,乘以RH除以n的平方,它等于负的有效电荷量的平方,我们将会一次又一次的看到它。

麻省理工公开课 - 化学原理课程节选

Particularly, if we took advantage of the fact that this is a virus that's easily transmitted orally and could you make a vaccine that would be effective orally as well, that would be a tremendous advantage, especially in children who don't like to get shots.

尤其是,如果我们可以利用这种病毒,很容易经口传播这一事实,制造出一种,可以通过口服而起到同样效果的疫苗,那么这将是一个巨大的飞跃,特别是对于那些不喜欢打针的孩子

耶鲁公开课 - 生物医学工程探索课程节选

So, if we just rearrange this equation, what we find is that z effective is equal to n squared times the ionization energy, IE all over the Rydberg constant and the square root of this.

我们可以发现有效的z等于n的平凡，乘以电离能除以里德堡常数,这些所有再开方，所以等于n乘以,除以RH整体的平方根。

麻省理工公开课 - 化学原理课程节选