Applying the most conservative estimates to current demographic trends, the human population will increase by about three billion people by then.
按照对目前人口趋势的最保守估计，到那时人口将增加约30亿人。
A good example is the reckoning that the urban population will increase some 350 million by 2025.
一个很好的例证是，人们估计中国的城镇人口到2025年将增长约3.5亿。
In the next several decades, it is believed that the world's population will increase to about nine billion people.
据信，在未来的数十年中，世界人口将增长到大约九十亿。
The construction ministry estimates that the country's urban population will increase by 300 million people by 2025.
建设部估计，该国的城市人口到2025年的时候将再增加3亿。
It is the fast growth period that the number and the formation of the elder in China in the 21st century. The proportion of the elder in the total population will increase gradually.
21世纪，是我国老年人口数量及人口老龄化的快速增长时期，老年人口在社会总人口中的比重将逐渐增大。
The USA will increase, from 2010-2030, its population by 20% through immigration.
从2010年到2030年，美国将通过移民使其人口增加20%。
Any increase in wages above this height will lead to an increase in population, and then the competition of increased Numbers for employment will force wages down again to the minimum.
超出这一水平的任何工资增长都会导致人口的增加，从而加剧就业人口之间的竞争，这种竞争将会强迫工资再次降低到最低水平。
This means its population is growing at about 2pc per year – and as the young start to have families of their own, the rate of population growth will increase.
这就意味着，其人口每年增长约2%——当年轻人有了自己的家庭后，人口增长率将会增加。
As population growth continues and food production increases, however, demand for groundwater will only increase, Famiglietti warns.
然而法穆戈莱蒂表示，随着人口的持续增长，食物需求量也在直线上升，地下水的使用量只会越来越多。
The increase in world population by 2050 will be around 30%, less than in the 40 years to 2010, when it rose by over 80%.
到2050年，全球人口增幅约为30%，仍比2010年前40年80%多的增幅要小。
The U.S. population, according to another recent study, will increase over the same period from about 300 million today to 468 million in 2060, most of that increase coming as a result of immigration.
根据另一项调查，到2060年，美国人口将从3亿增长到4亿6800万，其中很大部分是移民的结果。
The enormous increase of population will create many problems。
巨大的人口增长将产生很多问题。
The enormous increase of population will create many problems.
巨大的人口增长将产生很多问题。
Britain will see its population swell from today's 62.2 million to 77 million, an increase of 24 percent.
英国人口将激增24%，从目前的6220万增长至7700万。
According to the World Bank, between 2005 and 2055 agricultural productivity will have to increase by two-thirds to keep pace with rising population and changing diets.
根据世界银行，2005年和2055年之间农业生产力必须增长三分之二才能保持和人口增长及饮食改变同步。
Jules Pretty said that global food production will have to increase by 50-100% in the next 30 to 40 years, in order to feed Earth's growing population.
朱尔斯·皮雷蒂说全球粮食产量在未来30- 40年要增长50%- 100%，以保障全球日益增长人口的食物供给。
That increase will come partly from a growing amount of waste generated per person but mainly from a rising urban population.
垃圾增多部分来源于人均垃圾的增加，而整体的增长是源于人口的增加。
Jules Pretty said that global food production will have to increase by 50 to 100% in the next 30 to 40 years, in order to feed Earth's growing population.
朱尔斯·普雷蒂表示，随着人口不断增长，在未来的30到40年间全球粮食产量必须增产50%至100%以满足人口需要。
China's working-age population will not increase between now and 2030. But the number of people 65 or older will triple.
劳动群体现在到2030年间不会增加，而65岁以上人口会增加三倍。
The power coefficient of reactivity (PCR) is a measure of whether a particular reactor's nuclear neutron population will tend to increase or decrease after an increase in the reactor's power.
PCR是一座反应堆的核中子数会在反应堆能量增加后增加或减少的衡量标志。
And the FAO notes that global food output will have to increase by 70% to feed a population projected at 9.1 billion in 2050.
联合国粮农组织指出全球粮食产量必须增长70%才能满足2050年全球将要达到的91亿人口。
About half of the 2.3 billion increase in the world's population over the next 40 years will be in Africa.
世界上接下来40年里人口增加的23亿中大约一半会来自非洲。
About half of the 2.3 billion increase in the world's population over the next 40 years will be in Africa.
世界上接下来40年里人口增加的23亿中大约一半会来自非洲。
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