Her work "Variations on H" is made up of different colors of finely made hands connected together to form a flowing cloth.

VOA: special.2009.11.04

And we give different names, depending on what kind of electrons we're dealing with, so, for example, with h c l here, we can talk about having bonded versus lone pair electrons.

我们还起了不同的名字，给我们要处理的不同类型的电子，以氯化氢为例，我们来介绍一下成键电子与孤对电子。

麻省理工公开课 - 化学原理课程节选

So our skeleton tells us that carbon is in the middle, so we'll put the h on one side, and the n on the other side there.

我们的骨架告诉我们碳原子应该放在中间，因此我们把氢原子放在一边，把氮原子放在另外一边。

麻省理工公开课 - 化学原理课程节选

Earlier,we discussed the work "Variations on H."

VOA: special.2009.11.04

Why didn't they keep right on going with G, H, I, J, K, L, M, N, O, P?

为什么他们不接着写下去呢,按照字母表

耶鲁公开课 - 聆听音乐课程节选

Mark Hurd was out. Investigators said he had falsified expense records to hide spending on a woman who worked with H-P.

VOA: special.2010.08.13

include cs50 h But this says include and this says include a file called cs50.h that lives in some special place on the server that the cs50 staff wrote.

这里写在,众所周知，cs50，h是由CS50的员工,编写的一个库文件。

哈佛公开课 - 计算机科学课程节选

The W.H.O.estimates that up to thirty percent of the medicines on sale in many of those countries are counterfeit.

VOA: special.2010.02.22

We're just going to go through it and execute it a little bit. And then we'll move on and talk about how we'd actually make some of these measurements of delta H and compare

对吧？我们会讲完它并,实际应用一下，然后我们会,继续讲一下实际上我们,是怎样测量△H并与

麻省理工公开课 - 热力学与动力学课程节选

The W.H.O.is calling on those governments to ban tobacco advertising to the fullest extent possible and to do more to protect women.

VOA: special.2010.05.31

So it looks a lot less messy if we just draw our Lewis structure like this for h c n, where we have h bonded to c triple bonded to n, and then a lone pair on the nitrogen there.

这看起来整洁了不少,如果我们把氰化氢的路易斯结构画成这样的话，这样我们就有氢与碳之间的单键和碳与氮之间三键，然后还有一对孤对电子在氮这里。

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

And the last thing we can think about is how do we name this n h bond, and again, we just name it based on it symmetry.

最后我们要讨论的是,如何命名这个NH键，同样，我们基于它的对称性命名它。

麻省理工公开课 - 化学原理课程节选

The W.H.O.says most poor countries spend less than one percent of their health budgets on mental health.

VOA: special.2010.04.13

The two became friends. John Henslow suggested that Charles Darwin take the unpaid position of naturalist for a trip on the British ship H.M.S.Beagle.

VOA: special.2009.02.25

AIDS researchers say they still have much work to do on a vaccine against H.I.V.

VOA: special.2009.09.30

Researchers studied the pathways on which dopamine travels in fifty-three adults with A.D.H.D.

VOA: special.2009.09.29

On Monday,Washington,D.C., health officials reported shocking information about H.I.V.

VOA: special.2009.03.20

The study was based on versions of H.I.V.

VOA: special.2009.09.30

For those lucky enough to see not to have one of Richard Milner's performances, Darwin's explorations on the survey ship H.M.S.Beagle and his struggles to publish his ideas come to life through music.

VOA: standard.2009.11.25