I mean they take up a teeny bit but essentially when we're thinking about the set up of the atom, we don't have to account for them as using up a lot of the mass we're discussing.

所以我们可以假设电子没有质量,它们占据了，非常小的一部分,所以当我们考虑,原子的构造的时候,不用考虑它们的质量。

麻省理工公开课 - 化学原理课程节选

Where, you know, you might have a single family that is using up 2 or 3 stories of the same apartment.

一个家庭也许会用上同一幢公寓的二三层楼。

上东区的房子 - SpeakingMax英语口语达人

There's an interplay between the energy inside the gas which is the heat energy which is allowing me to do all that work to be outside, and so I'm using up some of the energy that's inside the gas to do the work on the outside.

即使没有热传递,能量也能以,做功的形式传递出去，气体的一部分内能,转化成了功。

麻省理工公开课 - 热力学与动力学课程节选

We're only using up a little bit to eject the electron, then we'll have a lot left over.

如果我们只需要用很少一部分来发射出电子，那么我们可以得到很多的剩余能量。

麻省理工公开课 - 化学原理课程节选

Soil was being eroded and wasted along the Eastern seaboard, and they were using up the great soils of the Mississippi Valley and over time that slave system just somehow wasn't going to work out.

东部沿海地区的土地因被侵蚀而荒废掉,密西西比河谷地区的土地资源即将被耗尽,但就在这种情况下,奴隶制依然能维持南方的经济

耶鲁公开课 - 美国内战与重建课程节选

I've been using the blackboard a little ad hoc here, but suppose I neaten things up here now and present this rectangle is let's say R RAM, the memory inside of your computer.

我在这里特别地使用这块黑板，假如我整理这些东西，把它们呈现,这个长方形，假如说就是内存，你电脑的内存。

哈佛公开课 - 计算机科学课程节选

The body of that function looks exactly like the computation up above, except I'm simply using those in place of the specific message I had before.

方法体内部看起来,很像上面的计算过程,除了我用这些来替代了,原来的那些特殊信息。

麻省理工公开课 - 计算机科学及编程导论课程节选

I also would like you to pick up this paperback, it's not terribly expensive.We're going to be using it in the first few weeks especially: The Ancient Near East.

同时我希望你们都能有这本书，它不是很贵的，我们将在开始的几周里,用到它，这本。

耶鲁公开课 - 旧约导论课程节选

I'm using my credit card, I run up a debt that I can't handle.

然后靠信用卡来维持生活，结果负债累累，而我根本还不起。

斯坦福公开课 - 经济学课程节选

So I gave you some numbers I made up actually a long time ago, but since I've been using this game in class, somebody went out and checked.

我列举的数字都是我很久前编出来的,在我需要在课上引用数字的时候就有了,有人还为此做了调查

耶鲁公开课 - 博弈论课程节选

But here's how it worked--by the way, the word I have been using, colony is not a Greek word and really not appropriate for what the Greeks are up to.

大概是这样的,顺便说下,我说的殖民地,不是古希腊语,而且用于古希腊殖民不太贴切

耶鲁公开课 - 古希腊历史简介课程节选

These political clubs or parties use their influence to incense the populous using their power to whip up dangerous passions that tend to make American politicians closer to demagogues than to statesmen.

用他们的权力激怒群众,用他们的权力激起危险的热情,致使美国政治家,趋近于蛊惑民心的政客,而非政治家。

耶鲁公开课 - 政治哲学导论课程节选

If you have DNA fragments, so this is DNA that you've cut up into fragments using restriction enzymes for example.

如果你有DNA片段,例如有一段你用限制酶,切割成片段的DNA

耶鲁公开课 - 生物医学工程探索课程节选

Up until then they had been using the old stadium, which now has been turned into a park.

在那之前，他们一直使用旧体育馆；现在旧体育馆已经成为一个公园了。

布朗克斯的景点 - SpeakingMax英语口语达人

And so, I ended up using it, and it's caught on.

所以我也开始用，而且已经上瘾了。

便利的社交媒体 - SpeakingMax英语口语达人

At any rate, you're not using them and they're going to end up being used by somebody else.

无论如何,你不可能都用到它们,所以它们最终会被送给别人

耶鲁公开课 - 金融市场课程节选

LCAO-MO And, by using LCAO-MO, we can come up with the orbitals here.

我们运用，组合它们的轨道。

麻省理工公开课 - 固态化学导论课程节选

So again you can see as we're filling up our molecular orbitals, we're using the exact same principle we used to fill up atomic orbitals.

当我们填充轨道的时候可以看到，我们用的是和,填充原子轨道一样的原则。

麻省理工公开课 - 化学原理课程节选

And the reason is, and this will come up on the problems and a lot of students end up using this equation, which is why I want to head it off and mention it ahead of time, we can't use an equation because this equation is very specific for light.

原因是，很多同学在解题时,都会用这个方程，所以我要,事先提醒你们一下,我们不能用这个方程，因为它只对光是用。

麻省理工公开课 - 化学原理课程节选

Any questions about going through these cycles and using expressions like this and so forth? Expressions like this you know turn up in various places, like in the equations sheet that appears at the end of exams, right?

关于推导这些循环和使用,这样的表达式之类的,有没有什么问题？,这样的表达式在各种地方都会出现,比如试卷后面的公式页？

麻省理工公开课 - 热力学与动力学课程节选

So that means that we don't have to worry about things like wave functions when we're talking about Lewis structures, but because they're so simple to use and because they so often predict the electron configuration of molecules accurately, we end up using them all the time in chemistry, so it's very valuable to know how to draw them correctly and to know how to work with them.

因此这也就意味着我们在讨论路易斯结构的时候,不需要担心波函数之类的东西，但是由于路易斯结构不仅简单易用,而且用它来预测分子的电子排布,经常可以得到非常精确的结果，结果我们在化学中一直都在用它，因此知道如何正确地画出并运用,路易斯结构是非常有价值的。

麻省理工公开课 - 化学原理课程节选