Now the three problems that face us are "population source environment" which have the bearing with the groundwater resources directly and indirectly.
当今世界所面临的“人口、资源、环境”三大问题，都直接或间接地与地下水资源有关。
Population growth in Africa has long been a source of concern, as food and fresh water supplies are strained, but Kent argues that Africa's plentiful young may actually be viewed as its strength.
长久以来，随着紧张的食物和淡水供应，非洲的人口增长就是关注的源泉，但肯特坚决主张：实际上许多年轻人可以看做非洲的优点。
Agriculture provided a more dependable source of food, causing populations to increase; eventually excess population migrated to new lands.
农业提供了更加可依赖的粮食来源，使人口增长；最终过多的人口迁移到新的土地。
Africa can serve, she said, as a new source of global demand; its population may soon rival that of China and India.
她说，非洲可以成为全球的一个新增需求源；其人口将很快赶上中国和印度的人口。
Next year, for the first time, more than half the population is likely to be living in urban areas, implying a further boost to consumption, the country's main source of economic growth.
明年，印尼将可能第一次有超过一半的人口居住在城市地区，这意味着消费的巨幅增长，而这正是这个国家经济增长的主要源泉。
“Argentina’s future is very bright,” Alba said, noting that its highly-educated population and rich agricultural and mineral resources provide an excellent source of income for future growth.
“阿根廷的前途很光明，”他说，同时强调指出，其接受过良好教育的人口以及丰富的农业和矿产资源为今后增长提供了很好的收入来源。
China, which needs corn to fatten its vast population of pigs, is one source of support.
由于中国需要玉米来喂养数量巨大的猪，这是一个支持因素。
According to Liu, the population controls have kept sulphur dioxide emissions down by 17.6% and the main source of water pollution by 30.8%.
刘少杰称，人口控制已经将二氧化硫的排放量降低了17.6%，水污染的主要来源减少了30.8%。
In other words, wastewater agriculture provides an important source of nutrition for a good chunk of the population.
换言之，废水农业为一大部分人提供了重要的食物来源。
I liked the following one - 64 objects for each person on Planet Earth (source: World Population Clock).
我喜欢这种说法——相当于地球上每个人拥有64个对象(数据出自“世界人口时钟”)。
If a country that is in the working-age population to the fullest stage of growth will be an additional supply source, this is the demographic dividend.
某个国家如果正处在劳动年龄人口最充分的阶段，经济增长就会获得额外的供给源泉，这就是人口红利。
89% of the population in that region now have access to an improved water source, up from just 69% in 1990.
该地区能够获得安全水源的人口从1990年的只有69%增长到现在的89%。
This waters are raising several county over a million population tap water, has solved the water source problem which the farmer sows seeds, anxious villagers anxious.
这片的水域养育着几个县的上百万人口的饮用水，更解决了农民播种的水源问题，急了村民之所急。
Not only will this proposal provide more housing for the Cuban population, it will also serve as a source of income for the inhabitants, as they will be able to rent out more rooms to tourists.
这个提议不仅仅为古巴人民提供更多的住房，当它们能够出租更多的房间给游客时，它还会成为居民们收入的来源。
Source: Bureau of Labor Statistics, Current Population Survey.
资料来源：劳动局统计，当前人口调查。
The increase in population and then land pressure caused land desertification, this zone had changed into main source place of dust storm.
随着人口不断增长，土地压力逐渐增大，造成土地荒漠化严重，成为沙尘暴发生的主要沙源地区之一。
This issue contains a wide range of contents such as source of population, household registration, education attainment, and composition of economic activities.
近郊社区人口社会重构反映于人口来源、人户关系、受教育程度、经济活动构成等方面。
The unbalanced population structure is the direct source, since the basic assumption spang is long term relatively stable population structure.
应该说人口结构失衡是直接的诱因，因为收现付机制的基本约束条件在于长期相对稳定的人口结构。
The genetic variation comes mainly from population, the source of variation among populations is relatively little.
遗传变异主要来源于种群内，居群间变异来源比较小。
To get the source node and the evacuee amount on which, the method to model the initial population distribution is studied.
为了划定源节点并确定其上待疏散人口数量，本文初步探讨了初始人口分布的建模思路。
Our source tells us that the planned population reduction through these combined means is 50%.
情报提供人士告诉我们，通过这些联合的计划，实现使人口减少50%的计划。
For M. phoebe, to decrease grazing, especially its effects on the source population during the post-hibernating larval group stage, is crucial for its population restoration and growth.
在春季减少源斑块内的放牧，对于以源-汇集合种群形式存在的大网蛱蝶种群恢复和增长十分必要；
Objective to understand the potential risk for schistosomiasis transmission caused by introduction of infection source from mobile population in Shanghai.
目的掌握流动人口对上海市血吸虫病传播可能造成的潜在危险性。
By use of rate equations, we have analyzed the effect ot laser wavelength radiation in pump light source on excited state population accumulation of laser medium and laser threshold.
本文用速率方程分析了泵浦光源中激光波长辐射对激光介质激发态粒子数积累和激光器阀值的影响情况。
With the rapid development of China's automobile industry, the increasing of vehicle population, vehicle noise has become a major source of urban noise.
而随着我国汽车行业的迅猛发展，汽车保有量日益增加，车辆噪声已成为城市噪声的主要来源。
Almost everybody's source of information in 1991 was the Zionist news reports, so the Zionists had nearly total control of the population.
几乎所有人在1991年的信息来源都是以色列复国主义者的新闻报导，所以他们差不多完全控制了所有公民。
Of special interest is to produce an uneven spin population out of an unpolarized source by means of various spin-related transport phenomena (relativistic spin-orbit interaction).
自旋电子学器件需要一个有效的自旋注入到传统的半导体中，最近人们比较感兴趣的是利用自旋相关的输运现象-自旋轨道耦合来产生自旋极化。
Of special interest is to produce an uneven spin population out of an unpolarized source by means of various spin-related transport phenomena (relativistic spin-orbit interaction).
自旋电子学器件需要一个有效的自旋注入到传统的半导体中，最近人们比较感兴趣的是利用自旋相关的输运现象-自旋轨道耦合来产生自旋极化。
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