Tehran is under pressure both at home, over the disputed presidential election in June, and abroad,for its controversial nuclear program.

VOA: standard.2009.10.18

So for the reversible process, the work done is the integral under the pressure volume state function, the function of state.

对可逆过程，做的功,是压强体积态函数曲线下，的积分面积。

麻省理工公开课 - 热力学与动力学课程节选

Because it's so important. And I should add and also under reversible work, where the external pressure is equal to the internal pressure.

而且我还要说应该在外部压强,和内部压强相等的,可逆过程中引入它。

麻省理工公开课 - 热力学与动力学课程节选

every year, the government is under pressure to make an official recommendation on how much radiation is safe during a CT scan.

VOA: standard.2010.04.07

Or in many kinds of gas refrigerators where you push a gas through a nozzle close to room temperature, what you find is that the gas coming out on the other side under lower pressure is cooler than the gas that went through on the other side.

或者在很多种压缩气体式冰箱中,你让气体通过接近室温的管口,你会发现从压力低的一边,出来的气体比通过,另一边的气体更冷,真正的冰箱实际上通过。

麻省理工公开课 - 热力学与动力学课程节选

Political editor Nathan Gonzales says with Congressional elections looming in November, Mr.Obama is under pressure to show results.

VOA: standard.2009.12.15

Let's take a system. Under constant pressure T1 V1, going to a second -- this is the system, so let me write the system here.

我们建立一个系统1,在恒定的压强T1，V1，下，变成了另一个系统，-这个初始的系统让我把它写在这。

麻省理工公开课 - 热力学与动力学课程节选

The Iraqi government is under pressure to prove that it is capable of maintaining security inside the country before the June 30 U.S.pull-back.

VOA: standard.2009.06.01

du/dT constant pressure is the direct derivative with respect to temperature here, which is sitting by itself under constant volume keeping this constant but there is temperature sitting right here too.

偏U偏T，p恒定是对,温度的直接微分，而它本身对体积不变,保持它不变，但是这里也有一个温度,这就是偏U偏V，T恒定。

麻省理工公开课 - 热力学与动力学课程节选

In return Greece is under pressure to restructure its economy and implement austerity measures.

VOA: standard.2010.04.28

The isolated country is also under pressure because of United Nations sanctions imposed after Pyongyang conducted a nuclear test a year ago.

VOA: standard.2010.05.03

The Obama administration is clearly under pressure to do more to help contain the damage, and prevent another such disaster in the future.

VOA: standard.2010.05.18

"I think Obama is going to feel under great political pressure from his political left to at least have a token withdrawal next summer."

VOA: standard.2010.07.30

The American-backed resolution, passed last week, has raised concerns that India will come under pressure to join the treaty, to which it is not a signatory.

VOA: standard.2009.09.29

"No,that is not true. Our colleagues are not under pressure,".

VOA: standard.2009.09.09

The visit is gesture of support to the Pakistani government, which has been under intense American pressure to defeat Islamic extremists who have dramatically increased their attacks across Pakistan in the past two years.

VOA: standard.2009.06.03

Pakistan is an ally in the U.S.-led war against terrorism and has been under pressure from Washington to intensify efforts to root out extremists blamed for launching attacks on coalition forces across the border in Afghanistan.

VOA: standard.2009.12.11

It is because of the heroism, the calm under pressure,the grace with which these three gentlemen operated, but also the entire NASA family that was able to, at great risk oftentimes and with great danger, was somehow able to lift our sights not just here in the United States, but around the world,"

VOA: standard.2009.07.20