The country aims to reduce the ratio of infants dying before their first birthday to 50 per 1,000 live births or five percent.

VOA: standard.2009.11.10

And in practical terms, we can define the efficiency as the ratio of the heat in to the work out.

在实际中，我们定义,效率为热与功的比值。

麻省理工公开课 - 热力学与动力学课程节选

Part of--this is the--it's not loan-to-value ratio-- this is the ratio of mortgage debt to personal consumption expenditure.

这并非贷款价值比率的问题,一定程度上,是抵押率的问题,即负债对个人消费支出的比率

耶鲁公开课 - 金融市场课程节选

The figures in the two efforts reveal an anomaly: While Cambodia has succeeded in dramatically cutting the ratio of children who die each year, the maternal mortality figure has not dropped in a decade.

VOA: standard.2009.11.10

That is why we don't worry about the motion of the nucleus 1 because the ratio of mass is about 2,000 to one.

这就解释了为什么我们不担心,原子核运动起来,因为原子核和电子的质量比约为2000：

麻省理工公开课 - 固态化学导论课程节选

So, they had the ratio of two to one, which gave them the octave, and three to two, which gave them the fifth, and four to three, which gave them the fourth.

他们发现,八度音程中,呈现的是二比一的比例,而五度音程中呈现三比二的比例,在四度音程中则呈现四比三的比例

耶鲁公开课 - 聆听音乐课程节选

log We're going to have the ratio of temperatures T1 and the ratio of these logs.

和这些,最后可以得到等于T2除以。

麻省理工公开课 - 热力学与动力学课程节选

So there is more even playing field instead of the 21:1 ratio, we are doing much more, focusing on the positive.

比起21比1的比率，两方更均衡，我们做得更多，除了专注于积极的一面。

哈佛公开课 - 幸福课课程节选

But the acceleration it produces on the elephant and on the mass, are in an inverse ratio of their masses.

但这个力使大象和物体产生的加速度,与它们的质量成反比

耶鲁公开课 - 基础物理课程节选

The difference between ratio is a reward every certain number of times somebody does something.

比率强化意思是,间隔一定比例才给予奖励。

耶鲁公开课 - 心理学导论课程节选

It is the ratio of the Planck constant to its momentum .

那就是普朗克常量,比上它的动量。

麻省理工公开课 - 固态化学导论课程节选

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

So, typically the ratio of price-to-earnings has been about fifteen.

市盈率一般来说是为15

耶鲁公开课 - 金融市场课程节选

Incidentally, did I ever--equity equals shares or stock, so when I talk about debt-equity ratio, I'm talking about the ratio of the value of the company's debt to the value of all of its stock.

顺便说下,普通股就是股票,负债权益比就是,就是公司负债价值,除以股票总价值

耶鲁公开课 - 金融市场课程节选

So the ratio of the logs is just minus one.

所以这两个log的比是负一。

麻省理工公开课 - 热力学与动力学课程节选

It is about 10,000 to one, the ratio 10000 of the nuclear dimension to the entire atomic dimension.

原子核和整个原子的大小比例,约为1：

麻省理工公开课 - 固态化学导论课程节选

We had an extraordinarily high price-to-earnings ratio representing a lot of optimism in the '20s for the stock market and then it corrected and went abruptly downward-- that was The Great Depression.

在二十年代,市盈率高得离奇,表现了当时人们对股票市场的乐观,当其得到修正并突然下跌时,大萧条便开始了

耶鲁公开课 - 金融市场课程节选

What's happening and interests me acoustically, and again we'll come back to it, is that we're getting up toward here, and notice how these pitches in terms of the ratio frequencies are getting very close together.

这段乐曲从声学的角度上让我很感兴趣,我们再看看它,音乐升高到这里,然后我们注意到这些音高,是如何根据频率比最后汇合在一起的

耶鲁公开课 - 聆听音乐课程节选

n It takes discrete values, multiples of some integer n, and the multiplication factor is the ratio of the Planck constant divided by 2 pi where n takes one, two, three and so on.

这些离散的值乘以整数，乘积因子,是普朗克常数除以2π,其中n可以取1，2，3，等等。

麻省理工公开课 - 固态化学导论课程节选

We had a similar, even higher price-to-earnings ratio of about forty-six at the peak in 2000 and it corrected way down.

000年时我们的市盈率甚至更高,达到了46,后来经过修正降低了

耶鲁公开课 - 金融市场课程节选

The history of mortgages is that they have generally over time gotten more easy on loan-to-value ratio and also on maturity.

从抵押贷款的历史来看,随着时间推移,抵押贷款,对于贷款价值比和期限越来越宽松

耶鲁公开课 - 金融市场课程节选

All that matters is the ratio: how many shares I own divided by the number of shares outstanding.

比例才是最根本的要素,我有的股数除以总发行股数

耶鲁公开课 - 金融市场课程节选

There are lots of costs, so you want to have a loan-to-value ratio, which is sufficiently low, that the collateral will cover the value of the loan.

那是一大笔开销,因此你要设定一个足够低的,贷款价值比率,使得抵押物价值能够为贷款提供保障

耶鲁公开课 - 金融市场课程节选

He measured the charge to mass ratio of the electron.

他测量了电子的荷质比。

麻省理工公开课 - 固态化学导论课程节选

When you do a split, you're changing the number of shares for everybody, so it can have no effect on the ratio for anybody; it's just purely appearance.

当进行分割时,每个人拥有的股数变了,但每个人持股的比率没变,只是做做样子罢了

耶鲁公开课 - 金融市场课程节选

As you can see, part of the reason why the dividend-earnings ratio-- especially in more recent years, since 1990-- has been declining is that corporations were trying to somewhat ease the tax burden on their shareholders by doing repurchase instead of dividend.

可以看出,股利收益比降低的部分原因,尤其是在近些年,从1990年起,有所降低的原因是,公司想通过将分红,改为股票回购的方法,多少减轻股东的税负

耶鲁公开课 - 金融市场课程节选