Art Cashin,the floor director at UBS Financial Services, says many investors worry that the uncertainty in Europe could trigger another global meltdown.

VOA: standard.2010.05.21

A 100% uncertainty in the position 15% gives rise to a 15% uncertainty in velocity.

从完全不确定的位置,到速度的不确定度为。

麻省理工公开课 - 固态化学导论课程节选

With non-participating--with participating, you are participating in the portfolio outcome that the insurance company is experiencing, so you have some uncertainty about your cash value.

所谓参与式分红保险,是指你的收益来自某个投资组合收益,而这个投资组合是由保险公司来管理的,所以保单的现金价值是不确定的

耶鲁公开课 - 金融市场课程节选

As markets have rallied worldwide, China's move appears to have brought a ripple of hope, in what has been a sea of uncertainty.

VOA: standard.2010.06.21

I mean there is a lot of uncertainty in that.

因为有很多不确定性。

普林斯顿公开课 - 人性课程节选

The 81-year-old king of Thailand has no formal political role but has been a unifying force in Thailand during periods of political uncertainty.

VOA: standard.2009.10.15

But there is this sort of sense of uncertainty that you see in someone like Descartes, who finally just goes back to basics and says, "I think, therefore I am."

你可以在那个年代从某些人身上,看到一种怀疑的精神,比如笛卡尔,他最终逐本溯源提出"我思故我在"

耶鲁公开课 - 欧洲文明课程节选

And it came at a time of uncertainty in relations between the United States and Japan.

VOA: standard.2009.11.13

In fact, we can never be fully free of the fear and of the anxiety and uncertainty of the state of nature, even within to some degree of fully constituted civil society.

实际上，我们完全可以,脱离恐惧焦虑和,对自然状态的不确定,甚至在一定程度上可以摆脱完全文明的社会。

耶鲁公开课 - 政治哲学导论课程节选

NATO Secretary-General Anders Fogh Rasmussen made clear that despite an intensifying insurgency and uncertainty over whether U.S.President Barack Obama will send more troops, NATO will remain in Afghanistan.

VOA: standard.2009.11.17

So in this 40-minute interval we've gone sort of through an emotional musical journey here from despair, despondency, uncertainty, to whatever- to personal triumph, and in a way that mirrors some of the things that were going on in Beethoven's life.

在这四十分钟的乐曲里,我们走完了一趟情感丰富的音乐旅程,从消沉沮丧,到半信半疑,再到个人胜利,其实在某种意义上也反映了事实,贝多芬的人生,也将经历相似的历程

耶鲁公开课 - 聆听音乐课程节选

Lithuania's Soviet-built nuclear power plant was shut down late Thursday as part of an agreement with the European Union, ushering in a new era of energy uncertainty for the country.

VOA: standard.2010.01.01

And since we are not expecting the mass of the particle to change, what we really are saying is the uncertainty in its velocity times the uncertainty in its position is greater than the ratio of the Planck constant divided by 2 pi.

因为我们不期望,粒子质量发生变化，我们说的是,它速度的不确定度,乘以它位置的不确定度,比普朗克常量,除以2除以圆周率要大。

麻省理工公开课 - 固态化学导论课程节选

They know how to win over there,". The differences in opinion among veterans over what to do in Afghanistan reflect a broader uncertainty among the American public, says pollster Peter Brown.

VOA: standard.2009.11.16

There is a lot of uncertainty in it.

确实有很多不确定性。

普林斯顿公开课 - 人性课程节选

The U.N.'s top diplomat in Iraq,Ad Melkert, echoed the council's call, saying the delays are contributing to uncertainty and creating conditions that could be exploited by elements opposed to the country's democratic transition.

VOA: standard.2010.08.04

And to just give you a sense of what this is, the analytical expression that Heisenberg gave in one of its forms is that the uncertainty in the momentum a particle times the uncertainty in its position, this is the uncertainty.

给你说明一下什么是，分析的表述方式,海森堡给出的按照它的其中一种形式,那就是,粒子动量的不确定度乘以,位置的不确定度，这是不确定关系。

麻省理工公开课 - 固态化学导论课程节选

But there is a lot of uncertainty, and of course that is manifest in the share price which has lost about 40 percent of its value over the course of the past six or seven weeks."

VOA: standard.2010.06.18

Again, this is just his personal ambivalence about who he was, and his uncertainty about the role that he had in his own family So, this was a play-acting that was part of his life.

这也表明他对自己的身份的矛盾,以及自己在家庭中的角色的不确定,所以,这种角色扮演成为他生活的一部分

耶鲁公开课 - 欧洲文明课程节选

It leads to uncertainty in the measure.

它导致测量误差。

麻省理工公开课 - 固态化学导论课程节选

And so I went through the math on this and said suppose I wanted to be really sloppy and I wanted to say if the delta X, the uncertainty in position is on the order of one angstrom.

我算完它,并说假如我想很草率,并且我想说如果x的增量，即位置的不确定度,相当于一埃。

麻省理工公开课 - 固态化学导论课程节选