For now,the battle against hepatitis B is concentrated in communities with large Asian populations.

VOA: standard.2010.07.26

This is their profit. And I won't tell you what B is for now, but let's just.. I mean I won't tell you exactly what it is, but I'll explain it.

这就是利润表达式,先不讨论B,我是说我们先不讨论B到底多大,我们照常计算

耶鲁公开课 - 博弈论课程节选

You know that there is a vaccine for hepatitis B, for example, which is on this list.

比如,你们知道现在有乙肝疫苗,它就在这个表上

耶鲁公开课 - 生物医学工程探索课程节选

If our date for him, which is very problematical, is right roughly, then by certainly 700 B.C.

如果我们追溯他所处的时代的话,大概是在公元前700年,当然这有待确认

耶鲁公开课 - 古希腊历史简介课程节选

Please choose a rhythm for excerpt one you can choose rhythm A which is or you could choose rhythm B So I'm about to play a piece. It's by Chopin.

请选一个和你听到的相符的节奏,你可以选节奏甲,也可以选节奏乙,我现在要弹一段,肖邦的曲子

耶鲁公开课 - 聆听音乐课程节选

B for bodily. B1 through Bn; that's what death is. At least, that's what death of the body is.

是指身体,B1到Bn,这就是死亡的过程,至少,这是身体上的死亡

耶鲁公开课 - 死亡课程节选

So for b 2, which is a single bond, that's 289 kilojoules per mole to break it, and it takes us more energy to break this double bond for carbon, which is 599 kilojoules per mole.

对于B2，它是单键，需要289千焦每摩尔来打破它，而对于碳双键,打破它要更多的能量，等于599千焦每摩尔。

麻省理工公开课 - 化学原理课程节选

Vector equation A = B is actually a shorthand for two equations.

矢量方程 A = B 实际上是,两个方程的简写

耶鲁公开课 - 基础物理课程节选

Cv The only difference is it'll be Cp instead of Cv, B but there it is for pathway B. There it is for C a pathway C. So the state functions that we're familiar with are doing what we expect they ought to be doing, right? If you go around in a cycle, starting and ending at the same place the state functions have to stay the same.

是Cp而不是，这是路径,这是路径,所以我们熟悉的态函数的行为,正与我们预期的相同，对吧？,如果你沿着循环走一圈,开始和结束于同一个位置。

麻省理工公开课 - 热力学与动力学课程节选

For two, is it A or B?

第二条,是甲还是乙呢

耶鲁公开课 - 聆听音乐课程节选

So, that particular sub unit vaccine was only used in people that are at high risk for acquiring Hepatitis B, that is, people that work in healthcare situations that are exposed to blood routinely as part of their job.

因此,那些特殊的亚基疫苗当时仅用于,极有可能感染乙肝的高危病人身上,也就是那些在日常工作中,频繁的接触血液的健康护理人员

耶鲁公开课 - 生物医学工程探索课程节选

So we can draw that for 1 s a, we can also draw it for 1 s b, and what I'm saying for the molecular wave function is that we have the interference between the two, and we have a constructive interference, so we end up adding these two wave functions together.

所以我们可以对1sa画出它来，我们也可以对1sb画出它来，对于分子波函数我要说的是,它们两者之间会干涉，这里我们有相长干涉，所以我们得到的是波两个波函数加起来。

麻省理工公开课 - 化学原理课程节选

So this is our valence electron configuration for b 2.

这是B2的价电子构型。

麻省理工公开课 - 化学原理课程节选

Oh, and actually before you skip your page in the notes, I realized I should write out for you what the addition is to start with. So, when we're combining two waves, 1sb what we have is 1 s a that we're adding together with 1 s for b, the second atom.

在你们翻过这页讲义之前，我觉得我应该写出加法,当我们把两个波函数放在一起时，我们用1sa加上，第二个原子。

麻省理工公开课 - 化学原理课程节选