Israel says the purpose is to keep weapons out of Gaza and to prevent rocket fire into the Jewish state.

VOA: special.2010.06.05

So let's take our one model that we keep going back to Equation of state, and just see how it works.

我们回到经常使用的理想气体模型,或者说状态方程。

麻省理工公开课 - 热力学与动力学课程节选

Hobbes wants this sort of dictatorship to keep people from brawling in the state of nature.

他希望建立一个类似独裁的政府,以制止人们在"自然状态"下的争斗

耶鲁公开课 - 欧洲文明课程节选

Democrats charged that the real purpose of the law was to keep radical Republican state governments in power.

VOA: special.2010.02.18

This intuitively should make a lot of sense, because we know we're trying to minimize electron repulsions to keep things in as low an energy state as possible, so it makes sense that we would put one electron in each orbital first before we double up in any orbital.

这个直观上讲得通，因为我们知道尝试去最小化电子排斥力,从而尽可能的保持处于一个较低的能态,所以它讲得通,在我们在同一个轨道放入两个电子之前,我们首先把电子放入每一个轨道。

麻省理工公开课 - 化学原理课程节选

They also keep watch on the American state of Hawaii from an operations center near Honolulu.

VOA: special.2009.03.17

And the whole publishing industry was very careful to keep those or some, were very careful to keep those separate and how they will be managed. That was called separation of churching state. But when we began publishing on the internet, we discovered a new kind of content which are called community content.

整个出版产业十分小心,地保持着它们或者其中一些，非常仔细地保持,它们是分开以及如何管理它们，那被,称为政教分离，但是当我们,开始在互联网上出版，我们发现一种,新内容，交错社区内容。

麻省理工公开课 - 媒体、教育、市场课程节选

Israel wants to keep militants from obtaining weapons such as rockets that have been fired on civilians inside the Jewish state.

VOA: standard.2010.06.10

And by a "state of nature" he means, or by a state of war, he means a condition where there is no recognized authority in his language to keep us in awe, no authority to awe us.

而且通过“自然状态，或者通过战争状态，他意在说明一种状态,在他的说法里没有一个被认可的权力,将我们维持在敬畏中，没有权利使我们敬畏。

耶鲁公开课 - 政治哲学导论课程节选

And when we make these comparisons, one thing I want to point out is that we need to keep the constant principle quantum number constant, so we're talking about a certain state, so we could talk about the n equals 2 state, or the n equals 3 state.

当我们做这些比较时，我想指出的一件事是,我们需要保持常量原则,保持量子数是常数，所以我们在讨论一个确定的态时，我们可以谈论n等于2的态，或者n等于3的态。

麻省理工公开课 - 化学原理课程节选