The F-22 is what experts call an "air superiority" fighter, designed to defeat enemy jets in mid-air battles.

VOA: standard.2009.07.21

Depending on what F you fill in the blank with, what pet feature or fact you're trying to explain by appeal to the soul, you get a different argument.

根据你所挑选的不同功能特性F,以及你试图解释的现象或事实,诉诸于灵魂来进行解释,你会得到不同的论点

耶鲁公开课 - 死亡课程节选

So if we want to write out what that would be, it would just be to say that f minus is isoelectronic with neon.

那么如果我们把它写出来，它应该就是负一价的氟离子与氖原子是等电子的。

麻省理工公开课 - 化学原理课程节选

His comments reflected what other officials have said that ending the F-22 program is just one part of the effort to shift the focus of U.S.defenses away from what they see as the relatively remote possibility of a war with a major power and toward the types of smaller-scale conflicts of recent years.

VOA: standard.2009.07.21

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

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

Now, the crucial question, of course, is, "What's the relevant feature F?"

但关键问题是,那个相关的特性F是什么

耶鲁公开课 - 死亡课程节选

f What about 2? d, and 3? Yup, so 3 is f.

嗯，3是。

麻省理工公开课 - 化学原理课程节选

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

This time I'm not just saying --% 2f "%f" I'm actually saying % -- what -- %.2f.

这次我不只是讲“%f“,我要讲的是，%，--什么呢。

哈佛公开课 - 计算机科学课程节选

f Well, call toupper pass this lowercase F F to this function called toupper it's going to return capital F and so what do I assign to s2 bracket zero?

调用toupper函数，传递这个小写,然后返回的是大写的,那么我对s2【0】赋值多少？

哈佛公开课 - 计算机科学课程节选

It is. It's drawn like an array, it effectively is an array so bracket zero means go to the zero's location in that array, which happens to be F and do what with it?

它看起来像个数组，实际上也是一个数组,所以【0】就是定位到那个数组的0的存储单元，对于f发生了什么？用它做什么？

哈佛公开课 - 计算机科学课程节选

Well, you don't have to just take what you've been handed round in life, functions like print F or round or maybe other functions you've seen in super sections or by poking around.

好的，你没必要把传给你的参数保存起来,像函数printf或者,或者你们看到的其他的函数,在超级课程中或闲逛的时候。

哈佛公开课 - 计算机科学课程节选

For an f orbital, what is the quantum number l equal to?

对于一个，f，轨道，它的角量子数，l，等于几？

麻省理工公开课 - 化学原理课程节选

Remember, Newton said F = ma, but didn't tell you what value F has in a given context.

记住,牛顿只说 F = ma,但却没告诉你 F 在特定条件下的值是多少

耶鲁公开课 - 基础物理课程节选

What I want to do is ask, "What might feature F be?"

我的问题是,特性F可能是什么

耶鲁公开课 - 死亡课程节选

What's the difference between saying F = -kx and F = ma?

= -kx 与 F = ma 的区别在哪里

耶鲁公开课 - 基础物理课程节选

But luckily we don't have to worry about how we're going to picture all this, now that I said that, no physical interpretation f or a wave function, there is a physical interpretation for what a wave function squared means.

如何想象这些图像,我这么说，虽然波函数，物理解释,但波函数的平方，有物理解释,当我们说到。

麻省理工公开课 - 化学原理课程节选

So, we can say that -- if we have neon here and we want to think about what's isoelectronic, -- f minus would be isoelectronic. We also have oxygen -- what would the charge on oxygen be? Um-hmm, right. 2 minus.

那么，我们可以说--如果我们这里有氖原子,而我们想知道与它等电子的是什么，负一价的氟离子就是与它等电子的，我们还有氧-,氧应该是几价的？没错，负二价。

麻省理工公开课 - 化学原理课程节选

Just iterates from zero to Arg C. The indented line here print F is clearly printing a string, as per the percent S, but what is it printing?

只是从零开始迭代,到ArgC，这个缩进行printf显然是打印一个字符串,就像每一个%s，它在打印什么呢？

哈佛公开课 - 计算机科学课程节选