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。
Further, WMV-2 also changed the population structure of aphids.
病毒WMV - 2对棉蚜种群结构也有影响。
The population structure of the wintering cranes is reasonable.
越冬黑颈鹤的种群结构合理。
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。
Objective To study the population structure of small mammals in Eryuan Dali.
目的调查大理州洱源县小兽类哺乳动物种群结构。
Objective: To study the population structure of the small mammals in Dali, Yunnan.
目的：研究云南省大理市小兽类种群结构。
Better understanding of the population structure of the fishery is therefore of Paramount importance.
对渔业种群结构的更深入了解因此具有至高无上的重要性。
Objective Toanalyze the trend of population quantity and the type of population structure in Shanxi.
目的分析山西省人口数量、结构类型变化趋势。
Modern dog breeds are part of a unique population structure, having been selectively bred for many years.
现代犬种是一个独特的种群结构的一部分，是经过多年人工选择育成的。
The high male to female birth ratio has become the most outstanding issue in China's population structure.
出生性别比畸高成为当前中国人口结构中最突出的问题之一。
The reasons lie mainly in the population structure, the financial mechanism, the medical transmission, etc.
其原因主要有责任主体、人口结构、财务机制、医疗递送等因素。
The extention of population culture includes population change, population structure and population feature.
人口文化外延则是人口变动、人口结构和人口特征演变的基本领域。
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。
Over the next 15 years and beyond, China's population structure will become more and more similar to Japan's today.
在未来的15年及之后，中国人口结构将越来越像今天的日本。
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。
Among the factors, the impact of population structure on savings and economic growth has been drawing more and more attention.
在影响储蓄的众多因素中，人口结构变化对储蓄和经济增长的影响越来越受到关注。
By analyzing the characteristics of Chinese population structure, the development trend in Chinese pharmaceutical market was forecast.
通过分析我国人口结构特点，预测我国药品市场的发展趋势。
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。
Rupr. in Heilongjiang Province were isolated and purified to analyze the population structure of soft rot bacteria by morphologic characteristics.
生产田采集的软腐病菌进行分离、纯化，并根据形态学特征分析了大白菜软腐病菌的种群组成。
Objective To investigate indoor commensal rodent population structure in populated area, general institutions and emphasis institutions indoor in Wuhan.
目的了解武汉城区居民住宅、一般单位、重点单位室内家栖鼠种群构成。
The quantitative method, analysing the population structure of the high quality bolls, was suggested. the result was in accord with the actual situation.
本文提出了一套定量分析优质铃群体结构的方法，其分析结果与实际生产管理情况基本相符。
The method of dynamic comparable tree classification was introduced to study the population structure of natural Japanese red pine forest in Northeast China.
本文采用动态可比性林木分级法，研究了东北东部天然赤松林的种群结构。
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。
This spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants.
这种种群结构在空间上的变异可能是被栎瘿蜂开发的资源尤其是栎树寄主在斑块上出现变异的反映。
As a special group, floating population has distinguishing features about flow direction, regional distribution... population structure and economic constitution.
流动人口作为一个特殊的群体，在流动方向、地区分布、人口结构和经济构成上均有鲜明的特点。
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。
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.
通过盆栽试验研究了根修剪对冬小麦根系效率、水分利用及产量形成的影响。
Here, growth regularity of leaf tillers and population structure of winter wheat seeded on suitable time, and the four cultivation systems are introduced in detail.
本文较详细地介绍了适期播种的冬小麦叶蘖生长规律、群体结构及四大栽培体系的技术特点。
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。
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。
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