so you can see that there is going to be two sets in antibonding, three sets in bonding for a net of one, giving us the single bond.

因此你能看到,反键轨道上有两组，三组成键，得到一组净成键，所以成的是单键。

麻省理工公开课 - 固态化学导论课程节选

So if you have some charge in the nucleus, but you also have repulsion with another electron, the net attractive charge that a given electron going to feel is actually less than that total charge in the nucleus.

所以如果在原子核中，有一些电荷但是你也有来自，另一个电子的排斥力,那么一个给定电子的,吸引电荷感觉到的事实上,小于原子核中的总电荷。

麻省理工公开课 - 化学原理课程节选

Once the gases are mixed, there's not going to be any further net change in the system.

一旦气体混合,这个系统就不会发生任何净的变化。

麻省理工公开课 - 热力学与动力学课程节选

If I short the one-period bond it cancels out, so I've made no net purchase in 1925.

卖空一单位一年期债券则刚好抵消,所以我在1925年的净买入为零

耶鲁公开课 - 金融市场课程节选

Where is the center of net negative charge in this molecule?

分子的负电荷,中心在哪？

麻省理工公开课 - 固态化学导论课程节选

Three and a half billion dollars was the net worth, roughly, of slaves in 1860.

860年,奴隶作为资产,市值约35亿美元

耶鲁公开课 - 美国内战与重建课程节选

scratch Scratch is a program that you can download for free cs50 net and you will see in problem set 0 0 which will be posted on CS50.nettonight under problem sets in both standard and hacker editions, can you do the--can you--it will walk you through the process of getting this software.

你可以免费下载,今天晚上我会在0,放上习套题,这个习题集有两个版本，习题集可以指导你,如何下载这个软件。

哈佛公开课 - 计算机科学课程节选

So realize the support structure is now in place and in progress so do just let us know at help@cs50.net if you have questions that can't be addressed during office hours.

所以请意识到支撑结构已经出来了，并且正在进行,如果需要帮助，如果在课堂时间有任何不懂的问题,请在help@cs50，net上面给我,留言。

哈佛公开课 - 计算机科学课程节选

net For those unfamiliar this is a website at courses.cs50.net and has the entire Harvard Course catalog in it and what it has at top left as you might see is definitely your Facebook login button.

还不熟悉的同学可以登录courses。cs50。,整个哈佛大学的课程目录都在上面,在这个网页的左上角,可以看到Facebook的登录链接键。

哈佛公开课 - 计算机科学课程节选

So with problems at zero, ; which will be posted in two forms; PDF PDF for standard and PDF for hacker on cs50.net tonight, you will have the choice of implementing pretty much any scratch projects you can think of, and which subject to very few constraints.

对于问题集，我们提供了;,标准PDF以及可编程,今晚它们都会被放在CS50，net上，你可以选择任何,你想到的项目，范围不限。

哈佛公开课 - 计算机科学课程节选

So we can compare the two electron configurations, and we can actually think about what we figure out from them, we see that two are lowered in energy, two electrons are raised in energy, so we have no net gain or no net loss in energy for h e 2.

我们可以比较两种电子构型，我们可以考虑,我们发现这，两个电子能量变低，两个电子能量升高，所以在He2里没有净的能量得失。

麻省理工公开课 - 化学原理课程节选