A proportion of the land is used for agriculture.
一部分土地作农用。
The proportion of Americans living on welfare rose.
靠福利生活的美国人的比例上升了。
The proportion of regular smokers increases with age.
习惯吸烟的人口比重随年龄的增长而上升。
The proportion of small cars on America's roads is increasing.
美国公路上小汽车的比例在逐渐增加。
You haven't drawn the figures in the foreground in proportion.
你的前景人物画得不合比例。
The basic ingredients are limestone and clay in the proportion 2:1.
基本成分是石灰石和黏土，比例为2:1。
Older people comprise a large proportion of those living in poverty.
在那些生活贫困的人中，老年人占有很大的比例。
They receive a proportion of their income from the sale of goods and services.
他们一部分的收入来自出售货品和各种服务所得。
The proportion of men to women in the college has changed dramatically over the years.
近年来，这个学院的男女学生比例出现了剧变。
A higher proportion of Americans go on to higher education than is the case in Britain.
美国人上大学的比例大于英国。
Children tend to have relatively larger heads than adults in proportion to the rest of their body.
与身体其余部位相比，孩子头部所占比例往往比成人大。
The proportion of the population who are over retirement age has grown tremendously in the past few years.
超过退休年龄的人口的比例在过去几年中已急剧增长。
Were the government to use a multiplier of five instead of three, the proportion of Americans below the poverty line would rise to more than 24 percent.
如果政府用5而不是3做乘数，那美国的贫困人口比例将会上升到24%以上。
In Japan the proportion is 35%.
在日本，这一比例为35%。
The proportion of working-age people with jobs is lower than in the trough of the recession.
适龄劳动人口的就业比例还是低于经济衰退低谷时的比例。
Since 1951 the proportion of married women who work has grown from just over a fifth to a half.
自1951年以来，在职的已婚女性的比例已经从刚超过五分之一增长到二分之一。
It is a Swiss company, but only a small proportion of its production takes place in Switzerland.
它是一家瑞士的公司，但是它在瑞士只生产很少一部分产品。
Thus a proportion of the total volume of any sediment, loose or cemented, consists of empty space.
因此，无论是疏松或胶结，沉积物总体积都有一部分是由空隙组成的。
This is also public stereotypes of blacks, the proportion of white respondents endorsing each trait.
这也是对于黑人的公众刻板印象，认可每条特征的白人调查对象的比例。
Scientists have collected samples from crows in order to estimate the proportion of larvae in their diet.
科学家们从乌鸦那里收集了样本，以估计它们食物中幼虫的比例。
The proportion of free oleic acid that an olive oil contains is an accurate measure of the oil's acidity.
橄榄油中游离油酸的比例是对橄榄油酸度的精确测量。
The study compared the proportion of wealth poured into transport by thirty-seven cities around the world.
这项研究比较了全世界37个城市投入交通运输的财富比例。
Another cause is that the proportion of people who are trying to lose weight has been increasing over time.
另一个原因是，随着时间的推移，试图减肥的人群比例一直在增加。
I think more trees should be planted on our campus because green areas are out of proportion to the whole campus.
我认为我们学校应该多种点树，因为学校的绿地面积与整个校园面积不成比例。
The relative proportion of different species of animals hunted by people in the region also changed progressively.
该地区被人们猎杀的各种动物的相对比例也在逐步变化。
In Europe, the proportion of people living in cities was always smaller than that of the workforce working in factories.
在欧洲，生活在城市的人口比例总是小于在工厂里工作的劳动力比例。
Third, growth was reflected in changes in the proportion of the relevant age group enrolled in institutions of higher education.
第三点，相关年龄组在高等教育机构就读比例的变化反映了增长。
Relative poverty is generally considered to be a household income level which is below a given proportion of average family income.
相对贫困一般被认为是家庭收入水平低于平均家庭收入的一定比例。
Relative poverty is generally considered to be a household income level, which is below a given proportion of average family income.
相对贫困一般被认为是家庭收入水平低于平均家庭收入的特定比例。
By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can construct a geographic timeline.
通过测量一束头发上较重的氢和氧同位素的比例，科学家可以构建一个地理时间轴。
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