Food stored in the smaller pot is kept from spoiling through a simple evaporation process.

VOA: special.2009.02.09

This is an example where the external pressure here is kept fixed as the volume changes, but it doesn't have to be kept fixed.

在我们举的这个例子中,外界压强不变，气体体积改变。

麻省理工公开课 - 热力学与动力学课程节选

making sure that, you know, the building is kept up, building is safe and maintained,

确保宿舍楼内的安全和秩序。

关于宿舍制度 - SpeakingMax英语口语达人

When printing begins, the stone is kept wet and then covered with oily ink.

VOA: special.2009.09.02

One is in the U.S.at the Centers for Disease Control, where there is a sample of variola, which is kept, you know, frozen on ice in a heavily guarded facility.

一个在美国的疾病控制中心,那有一支天花病毒的样本,冰冻后置于重重保护之下

耶鲁公开课 - 生物医学工程探索课程节选

Once the water is heated, it is kept hot with material called insulation.

VOA: special.2009.04.20

Also--this is to be kept in mind, and this is of course we'll have more to say about distinctions between them on Tuesday: Derrida is not a literary theorist.

请记住,周二我们会更详细地讨论他们之间的不同：,德里达不是一个文学理论家。

耶鲁公开课 - 文学理论导论课程节选

The list is kept by the International Union for Conservation of Nature.

VOA: special.2010.04.20

This is the strongest memory I have, and I remembered a) that I didn't learn them, and that was really bad because it kept coming up, but the other thing I remember is that I had no idea why they were important. I didn't really understand what any of these molecules were.

这就是我最深刻的记忆，我记得我并没有学好，这十分不好，因为之后它们总是不断出现,但另外的事情我记得,是我完全没有概念为什么。

麻省理工公开课 - 化学原理课程节选

The rating is kept for future use.

VOA: special.2009.02.02

But it came down to this theme that still is so important, and was already so important, which is, what is Russian that should be kept uniquely Russian and closed to outside influence?

但是归根结底,这牵扯到一个相当重要的主题,那就是俄国的哪些特质,该不受外界影响而保留下来

耶鲁公开课 - 欧洲文明课程节选

To the left of the front door, about fifty meters away, is where the Vanderbilt family kept its horses.

VOA: special.2009.11.16

I don't think they were having very good success, but they did notice something interesting which is that the rat kept returning to the corner of the cage in which it was stimulated the day before So Olds got an interesting idea, he said, what if we let the rats stimulate in its own brain, what would happen.

他们的试验并不是非常成功，但他们确实是注意到了一些有趣的事情,老鼠总是会回到,昨天接受刺激的那个箱子的角落,因此奥兹产生了一个有趣的想法，他想，如果我们让老鼠在自己的脑中对自己进行刺激会，发生什么事情。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

"It is," I said. "The wine cellar is just beyond these tombs where the dead of my family are kept.

VOA: special.2009.02.07

But they kept this idea that the demos-- - that is, the adult citizen males of a city-- were a political body.

但是他们保留了Demos这个概念-,即城市的成年男性公民-,是一个政治群体。

耶鲁公开课 - 新约课程节选

When this happens,he said, money is withdrawn from the people's use and kept in the public treasury, where it does no good.

VOA: special.2010.05.20

All right, so gamma, the gas is cooling so V2 is going to be less than it what would be if the temperature kept constant.

气体温度下降了,于是V2会比等温过程,降到相同压强时的体积要小。

麻省理工公开课 - 热力学与动力学课程节选

The pasture is then kept empty until the grass grows to more than Experts say sheep and goats may require special preparations.

VOA: special.2009.01.06

There are still some active smallpox virus specimens kept in the world, and there are two sources of small--two places where smallpox is stored now.

世界上仍有地方保存着,一些具有活性的天花病毒样本,有两个地方还储存着天花病毒样本

耶鲁公开课 - 生物医学工程探索课程节选

The pasture is then kept empty until the grass grows to more than fifteen centimeters high.

VOA: special.2010.01.19

So, I said I'd tell you a little bit more about where this Bohr radius came from, and it came from a model of the atom that pre-dated quantum mechanics, and Neils Bohr is who came up with the idea of the Bohr radius, and here is hanging out with Einstein, he had pretty good company that he kept.

我要告诉你们,波尔半径是从哪里来的,它起源于前量子力学时代的，原子模型,尼尔斯，玻尔提出了，波尔半径的概念,这是他和爱因斯坦在一起，他们是好朋友，当我们讨论这个原子模型时你们要记住的是，在1911年。

麻省理工公开课 - 化学原理课程节选

An ace in the hole is an argument, plan or thing kept hidden until needed.

VOA: special.2009.11.22

You are really out on a limb - if you're going to defend poetry--as Richards kept doing-- as "pseudo-statement," but of course pseudo-statement" is just another expression for what he calls here "fiction."

你会陷入孤立无援的境地,如果你像，Richards一样-,说诗歌是“伪陈述“,当然，这里“伪陈述“只是,“虚构“的另一种说法“

耶鲁公开课 - 文学理论导论课程节选

You'll be kept in prison for a long time.'" But in reality,there is help.

VOA: special.2010.06.14

So that should mean that the energy that's transferred to the electron should be greater, but that's not what you saw at all, and what you saw is that if you kept the frequency constant there was absolutely no change in the kinetic energy of the electrons, no matter how high up you had the intensity of the light go.

所以这意味着转移到电子,上的能量也越大，但这并不是，我们观测到的现象,我们所看到的是,如果固定光的频率不变,不管光强如何变化,电子的动能没有任何变化。

麻省理工公开课 - 化学原理课程节选

That is how I have kept out of trouble with the police.

VOA: special.2010.04.24

Another problem is that the vaccine must be kept extremely cold.

VOA: special.2009.11.03

health care is one industry that has kept hiring.

VOA: special.2009.08.13

But the laws have not kept up with the times. There is something wrong with that picture.

VOA: standard.2009.07.27

It is something they now deeply regret, because,she says,"the promises of the Orange Revolution were not kept."

VOA: standard.2010.02.14