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He announced the results of his latest blood test for H.I.V.
VOA: special.2010.04.28
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And so we can actually think about how do we calculate what the dissociation energy should be for h 2, so let's go ahead and do this.
因此，我们其实可以想到应该如何计算,氢分子的离解能，那么我们开始做一下吧。
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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。
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South Africa plans to test fifteen million people for H.I.V.
VOA: special.2010.04.28
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Let's go through this calculation for HF.
我们把H，F数据代入检验这个公式。
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People who get tested for H.I.V.
VOA: special.2010.04.28
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It's the same for H.
对H也是一样的。
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"For her?" "His mother." "Oh-h!"
VOA: special.2010.05.15
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stdio c So somewhere there's standard IO dot C, stdio h somewhere they're standard IO dot H, but, for me, right now, the only file I need to know about is the dot H, -- because what Sharp include really does -- it's what's called a preprocessor directive.
所以某个地方有一个，现在对于我来说它们是，我只要知道那个，h文件，因为Sharp包含的-,叫做预处理指令。
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VOA: special.2009.10.13
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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
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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
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One thinks of D. H. Lawrence's Sons and Lovers, for example, in which the central character, Paul Morel, is crippled by an Oedipus complex that he can't master and the difficulties and complications of the plot are of this kind.
拿D。H。劳伦斯的《儿子与情人》来说，里面的核心人物保罗，被自己不能控制的俄狄浦斯情节困扰,复杂多变的情节也就由此展开。
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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
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So our bond order for h e 2 is going to be equal to 0.
所以He2的键序等于0。
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In the past,the W.H.O.and experts with America's Centers for Disease Control and Prevention noted guidance for disease spread on airplanes.
VOA: special.2009.07.14
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Let's draw the molecular diagram for h e 2 now.
让我们画一下He2的分子图。
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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
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H And, by the way, if you do this for the hydrogen, H it ought to come out the same.
顺便说一句，如果是，或者如果是。
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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
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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。
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The W.H.O.offices for the Americas and the Western Pacific reported two out of three of those cases.
VOA: special.2009.11.24
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And the bigger lesson from that is that entropy, unlike energy u or enthalpy H, we could define an absolutely number for it.
热力学第三定律的一个更重要的推论是,与内能和自由焓不同，我们可以给上定义一个绝对的数值。
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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
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Whereas under these conditions, these quantities, if you look at free energy change, for example at constant temperature and pressure, H you can still calculate H.
但是，在这些条件下，这些物理量，如果我们考察自由能的变化,例如在恒定的温度和压强下，我们仍然可以计算。
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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
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H for an ideal gas is only a function of temperature. This is not true for a real gas fortunately, but it's true for an ideal gas.
不正确的,但是幸运的是,对于理想气体是完全正确的。
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The W.H.O.says treatment should begin immediately and not wait for the results of laboratory tests.
VOA: special.2009.08.18
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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。
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So, for example, down here I wrote that it was n 2 and that it was h 2, but when I re-wrote the molecules up here, you saw that it's an h h single bond where it's a nitrogen-nitrogen triple bond.
比如，在这下面我写的是氮分子2,而这个是氢分子，但我在上面把这些分子的形式改写了，大家可以看到,这是一个氢与氢之间的单键，含一个氮与氮之间的三键。
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