The F.C.C.chairman also wants to extend all six principles to wireless carriers now that their phones access the Internet.

VOA: special.2009.09.25

So, we see is when we use the octet rule to look at fluorine molecule, we're combining two fluorine atoms, and what we end up with is an f f molecule where they're sharing two electrons, so making that covalent bond.

那么，我们看到把八隅体规则用到氟分子上,就是把两个氟原子组合起来，最终得到的氟分子中两个原子,共用一对电子，这就构成了共价键。

麻省理工公开课 - 化学原理课程节选

So I said that we want to be talking about valence electrons here, so that means if we're talking about, for example, the octet rule for an f f molecule where we have two fluorine atoms, we need to write the valence electrons as dots around them.

我说过我们在这要讨论的是价电子，这就意味着，如果我们要讨论，比如，关于两个氟原子组成的分子的八隅体规则,我们首先需要把价电子画成围绕在它们周围的点。

麻省理工公开课 - 化学原理课程节选

The I.M.F.predicts developing economies will continue to grow for the year, but only by about one and one-half percent.

VOA: special.2009.04.24

We are constantly looking for values of F and we're constantly looking for responses or bodies to a known force.

我们不断地寻找 F 的值,我们不断地探索已知力对物体的作用

耶鲁公开课 - 基础物理课程节选

Each year, the John F.Kennedy Center for the Performing Arts in Washington honors performers for their lifetime of work.

VOA: special.2009.11.30

How to go from one reference point to the other with this property. This property, f which we're going to call f.

这两个参考点插值,得到不同温度时工作物质的特性，我们把这一特性记做。

麻省理工公开课 - 热力学与动力学课程节选

Martin Edwards is an assistant professor at Seton Hall University in New Jersey who has written about the I.M.F.

VOA: special.2009.10.02

For example, F x y z if I have an equation that looks like this, f of x, y, z.

打个比方，我有个这样的方程。

麻省理工公开课 - 固态化学导论课程节选

They attend the F.Edward Hebert School of Medicine of the Uniformed Services University of the Health Sciences in Bethesda,Maryland.

VOA: special.2010.07.13

In this case, I'm going to get back the answer 3 F-O-O because the user typed in F-O-O, but wait a minute, what's with this?

假若这样，我得到了答案3,因为用户输入了，等一下，用这个干吗？

哈佛公开课 - 计算机科学课程节选

But the F.A.O. representative in Liberia warned about spraying pesticides from airplanes because of the risk of additional water pollution.

VOA: special.2009.01.27

Let's bind z eh let's bind z to the-- f if I could type it would help-- say, f of 3. OK?

让我们给z赋值--如果我能打字就好了-,比方说？

麻省理工公开课 - 计算机科学及编程导论课程节选

Reuters news agency reported that he said the I.M.F.is working to find a solution in the next few weeks.

VOA: special.2009.05.16

So they began to call this A and this B and this C and this D and this E, this F, this G.

他们开始把这叫做A,B和C,这个是D,E,F,G

耶鲁公开课 - 聆听音乐课程节选

A new report by the I.M.F.estimates that the world economy will shrink by one and three-tenths percent this year.

VOA: special.2009.04.24

If the vices very significantly outweigh whatever virtues there are, that's some kind of an F.

如果论文的缺点非常一定及肯定比优点多，那大概就是F了。

耶鲁公开课 - 死亡课程节选

Michael O'Donnell says the F.A.A.is spending between seven hundred fifty thousand and one million dollars a year on radar research.

VOA: special.2009.04.01

B.F. Skinner never let his pigeons starve; they all made it out alright.

.F.斯金纳从不让他的鸽子挨饿,所以它们都活得挺好

耶鲁公开课 - 金融市场课程节选

Since two thousand five, the F.C.C.has used four policy principles to guide its enforcement in cases related to the Internet.

VOA: special.2009.09.25

> >> David: F, c because I want to tell printf, "Use these values in those placeholders, these values in those format strings."

>，【无法辨认的声音】,>>，大卫：“f，c“因为我想告诉printf，“在那些占位符,和那个格式下打印这些值“

哈佛公开课 - 计算机科学课程节选

The American Food and Drug Administration says R.F.I.D.tags act like an electronic safety net to make it easier to catch counterfeits.

VOA: special.2010.03.01

You got a plus f and a minus f, so you got to do what you got to do.

这里有一个正 f 和一个负 f,所以你知道该怎么办

耶鲁公开课 - 基础物理课程节选

He composed it for the opening of the John F.Kennedy Center for the Performing Arts in Washington,D.C., in nineteen seventy-one.

VOA: special.2009.08.02

Newton says F = ma, so to make it a useful result of this problem, we know the mass of this guy.

牛顿指出 F = ma,这对于解决这个问题很有用,我们知道这个物体的质量

耶鲁公开课 - 基础物理课程节选

Those with the highest winds that destroy well-built homes and throw vehicles more than one hundred meters are called an F-five.

VOA: special.2010.05.11

So path number 1 went from i, f let's call this path up here. went to f, and this is how much energy change there was.

从i出发，经过路径1到达，能量的变化是这么多。

麻省理工公开课 - 热力学与动力学课程节选

The F.A.O.says that by signing the treaty, governments promise to take steps to guard their ports against ships involved in such fishing.

VOA: special.2009.12.08

So if I print e to f of soccer, it will print the string football.

如果我要显示soccer的e到f变换的话，打印出来的就是football了。

麻省理工公开课 - 计算机科学及编程导论课程节选

And here the electrons are actually donated, so this becomes F minus.

非平均共价，到这里，电子被完全提供给F，这是氟负离子。

麻省理工公开课 - 固态化学导论课程节选