Against a backdrop of drastic changes in economy and population structure, younger Americans are drawing a new 21st-century road map to success, a latest poll has found.
一项最新民调发现，在经济和人口结构发生巨变的背景下，美国的年轻一代正在绘制一幅21世纪通向成功的地图。
That next stage consists of the definition and population of the initial portfolio structure for the organization.
下一个阶段包括对于组织的最初项目组合结构的定义和填充。
Such a policy distorts the age structure: the proportion of population in the younger age groups goes down and proportion of the elderly increases.
这样一项政策改变了年龄结构：年轻人的人口比例下降，而老年人的比例增长。
Those were indeed dire heat waves, contributing to the Dust Bowl, which dislocated millions of Americans and changed the population structure of the United States.
这些可怕的热浪造成干旱尘暴，使上百万的美国人迁移并改变了美国的人口结构。
First, as fertility falls it changes the structure of the population, increasing the size of the workforce relative to the Numbers of children and old people.
首先，生育率的降低使得人口结构发生变化，劳动力比例相对老人和小孩增加了。
A field experiment was conducted to study effects of root pruning at returning green stage on population structure, soil water and yield formation of winter wheat.
通过田间试验研究了返青期不同程度根修剪处理对冬小麦群体结构、土壤水分及产量形成的影响。
It has been proved that structure of food chain, immigration and emigration, environment noise can influence the pattern of complex population dynamics.
研究表明食物链的结构、种群的迁入和迁出、环境噪音都会对种群的复杂性动态特征产生影响。
These analyses have important implications for the study of changes in and spatial planning of Shanghai's population distribution and employment structure in the future.
上述分析和对比对研究上海今后人口分布和就业结构的演变和空间规划有着重要启示。
The third is that transient population can help to optimize and adjust industrial structure.
三是流动人口的聚集有助于优化和调整产业结构。
Objective: To present the methodology of graph theory principle coordinates analysis and explore its applicability for studying human population genetic structure.
目的：提出基因频率矩阵的图论主坐标分析方法，探讨该法在人类群体遗传结构研究中的应用。
As the population increases, more modules can be added to the structure, increasing the towers' heights and expanding the network, like land reclamation, only floating.
随着人口的增长，可以为这座建筑增加更多的模块，增加建筑的高度，扩大建筑网络，就像土地开垦那样，只不过这是漂浮着的。
This reflects a change in consumer preferences and population structure.
这反映出了消费者偏好的变化，也反映出了人口结构的变化。
Bud bank, formed by buds of a plant which are exploitable for vegetative regeneration, plays a fundamental role in local plant population even community structure and dynamics.
芽库是由植物上所有芽组成的，用于植物的营养繁殖，对植物种群乃是群落的结构和动态起到重要作用。
The objects of the impacts mainly include plant, wild animal, soil, water, atmosphere and population structure, etc.
冲击的对象主要是植物、野生动物、土壤、水体、大气和种群结构等。
Based on the collected data of population census of 1990 and 2000, this paper analyzes the causes, Characteristics, structure and changes of the floating population in Chongqing Municipality.
以1990年和2000年两次人口普查资料为基础，分析了重庆市外来流动人口迁入的原因、特点、构成和变化特征。
Population is the main of market. The change of population age structure will bring change of consuming demand and development trend.
人口是市场的主体，人口年龄结构的变动必然也会引起市场的消费需求和发展趋向的变化。
There exists different demand character in consumers at the different age, and population factors directly affect the market orientation and demand structure for houses.
不同年龄阶段的消费群体具有不同的需求特征，人口因素直接影响着住宅产品的市场定位和需求结构。
This paper deals with the behaviors of pond smelt and the changes in its population structure in the Tumen Reservoir, Fengcheng, and the Tanghe Reservoir, Liaoyang.
本文主要调查研究了凤城土门水库和辽阳汤河水库的池沼公鱼栖息活动及群体结构变化规律。
Gansu, as the second largest population province in Northwest region, the change of population age structure causes "silver wave" and "golden era" coming together.
甘肃作为西北第二人口大省，人口年龄结构变化导致的“银色浪潮”与“黄金时代”同时到来。
This needs the contemporary university graduate's positive participation, change the agricultural population structure fundamentally and improve the population quality.
这就需要当代大学毕业生的积极参与，从根本上改变农业人口结构和提高人口的质量。
Population size structure and population dynamics were elucidated with some statistical parameters, such as growth, survival and reproduction etc.
并通过对其生长、残存和繁殖等统计学参数的描述，揭示了种群结构和种群动态。
Then regression of mathematical models is used to study the distribution of population and the evolution of spatial structure of Beijing Metropolitan Area.
继而，通过数学模型的回归研究北京都市区人口分布及空间结构的演化趋势。
The population numbers, densities, structure and reasons of negative increasing of Moschus chrysogaster in Xinglong Mountain were studied in the paper.
对兴隆山马麝资源的种群密度、种群数量和种群结构以及负增长原因进行了研究分析。
The population structure and spatial distribution patten of Sassafras tzumu have been studied in this paper.
对福建省建阳市书坊乡贵溪村的天然檫树种群结构和空间分布格局进行研究。
The death and reproduction of the population make the mean density fluctuate but do not obviously change the overall level of population number and the population structure.
种群的死亡过程和繁殖过程使种群平均密度有较明显的波动，但对种群总体水平无明显影响，种群结构也无明显变化。
There will be a more rational population distribution and employment structure. The urbanization would be greatly enhanced.
人口分布和就业结构比较合理，人口城市化水平大幅度提高。
There will be a more rational population distribution and employment structure. The urbanization would be greatly enhanced.
人口分布和就业结构比较合理，人口城市化水平大幅度提高。
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