Fran?oise Barre-Sinoussi was honored with another scientist for research leading to the discovery of H.I.V., the virus that causes AIDS.

VOA: special.2009.05.13

So we'll take h 2 and we'll run -- or actually we'll have h 2 filled in an evacuated glass tube.

我们马上就会在氢原子上试一试,我们用氢气-我们把玻璃管充满氢气。

麻省理工公开课 - 化学原理课程节选

So when we talk about orbitals in multi-electron atoms, they're actually lower in energy than the corresponding h atom orbitals.

它们的能量实际上,比对应的氢,原子轨道要低。

麻省理工公开课 - 化学原理课程节选

Without new treatments,the W.H.O.says, the number of new cancer patients could reach twenty-seven million a year by two thousand thirty.

VOA: special.2009.03.02

Well, we would have to H+ have one of these hydrogen atoms go to an H plus, * plus an electron, right? **H --> H+ + e-** So, now we have a hydrogen ion here.

我们先要让,一个氢原子变成氢离子，加上一个电子，对么*,我们现在有一个氢离子了。

麻省理工公开课 - 固态化学导论课程节选

That way,H.I.V.-infected women could have plenty of time to get the pouch from a health care provider early in their pregnancy.

VOA: special.2010.05.24

There's W.H. Auden, an English-born poet who moved to America.

有奥登，出生于英国却搬到美国去的诗人。

耶鲁公开课 - 现代诗歌课程节选

Doctor Fukuda, an acting assistant director-general, said the W.H.O.has been working with the member states to prepare for a pandemic.

VOA: special.2009.06.10

For example, if t* is the time you hit the ground, then t* satisfies the equation h - 1/2 g ^2 = 0.

例如,如果在 t* 时刻落地,那 t* 就满足等式 h - 1/2 g ? ^2 = 0

耶鲁公开课 - 基础物理课程节选

The drug is nevirapine. If it is given within seventy-two hours after birth, it can often protect babies from H.I.V.

VOA: special.2010.05.24

Last time I began with Alexander H. Stephens's famous Cornerstone Speech in 1861, the famous passage by the Vice-President of the Confederacy declaring slavery the cornerstone of the Confederate Movement.

上次我说到亚历山大·H·史蒂芬,1861年著名的奠基石演讲,就是那个邦联副总统做的讲话,声称奴隶制是邦联运动的奠基石

耶鲁公开课 - 美国内战与重建课程节选

Also in the top ten causes were infections, including tuberculosis and H.I.V./AIDS, as well as drowning and fire-related deaths.

VOA: special.2009.09.28

And if you put this in the well-ventilated area, if you prepare this outside, the h c n gas will actually be released into the air, so you're safe, you can eat it later.

而如果你把它们放在通风良好的地方，在室外处理，那么氰化氢气体,将会被释放到空气中，这样你就安全了，过后就可以吃了。

麻省理工公开课 - 化学原理课程节选

But in the last twenty years, H.I.V.and the collapse of the Soviet Union helped raise death rates in thirty-seven countries worldwide.

VOA: special.2010.05.05

When we increase the potential between the 2 electrodes that we have in the tube -- we actually split the h 2 into the individual hydrogen atoms, and not only do that, but also excite the atoms.

当我们增大两个电极之间电压,我们有-我们可以把氢气2,分解成单个的氢原子，不仅这样，还能激发原子。

麻省理工公开课 - 化学原理课程节选

But in nineteen ninety-one, Democrats accused President George H.W.Bush of using the last such speech for political purposes.

VOA: special.2009.09.17

It is underpopulated right now, so if you are still shopping for a humanities subject, this one bears the precious CI-H designation.

现在它们的选课人数比较少，如果你们还需要一门人文学科，这些都是很可贵的沟通密集型课程。

麻省理工公开课 - 固态化学导论课程节选

He says these particles would offer a more exact method of transporting the short-lived drug, called B-H-three mimetic.

VOA: special.2010.03.16

H- *H + e-> H-* And, clearly, we can't do both.

到一个电子生成*,但我们发现我们不能同时做到两个。

麻省理工公开课 - 固态化学导论课程节选

"For example in Rwanda, where cell phone-based technologies are being used to keep track of dispensation of drugs to patients with H.I.V.

VOA: special.2010.05.03

The other thing is that we can re-write our h c n in terms of bonds.

还有一件事是我们可以用键的形式来表示氰化氢。

麻省理工公开课 - 化学原理课程节选

For the first time the W.H.O.raised its alert level from phase four to phase five on April twenty-ninth.

VOA: special.2009.05.06

So in terms of thinking about ethane, we actually have two bond types that we're going to be describing just in terms of the carbon-carbon bond and then the carbon h bonds.

对于乙烷，我们有两种键,我们继续讨论一下,碳碳键,和碳氢键。

麻省理工公开课 - 化学原理课程节选

In one study,infected mothers began to take three anti-H.I.V.drugs while breastfeeding for up to six months.

VOA: special.2009.07.29

- There are a few equations that you need to memorize -- those are the very simple -- very, very simple equations, such as e equals h times nu -- hopefully you don't have to sit down and try to memorize that, hopefully we all know that already.

只有几个公式是需要记住的-,它们都非常简单，非常非常简单，比如，E，等于，h，乘以，ν,希望大家不需要再专门去背了，希望我们已经都记住了。

麻省理工公开课 - 化学原理课程节选

Two studies showed ways in which anti-H.I.V.drugs could permit infected women to breastfeed their newborns with less risk of passing the virus to them.

VOA: special.2009.07.29

So instead of being equal to negative z squared, now we're equal to negative z effective squared times r h all over n squared.

这里不再等于-z的平方，现在我们等于-有效的z的平方,乘以RH除以n的平方。

麻省理工公开课 - 化学原理课程节选

A calf is a young cow. A young female cow, especially one that has not yet had a calf, is called a heifer: H-E-I-F-E-R.

VOA: special.2009.07.21

All right, so the type of bond energies that we can go and look up in tables are individual atom bonds, H-H, F-F, and the like.

好的，键能的类型,我们能够在表中查到,都是独立的原子键，H-H，F-F以及类似的。

麻省理工公开课 - 固态化学导论课程节选

This is h nu. X-rays coming in.

这是hv，X光出现了。

麻省理工公开课 - 固态化学导论课程节选