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Population Reference Bureau –dedicated to providing timely and objective information on U.S. and international population trends.
中文意思:
人品参考资料局—关于美国的信息和国际人口倾向。


以下为相关句子列表(点击查看,可以看对应的解释):
Popularize CA and the setting pattern. 推广客户自动化系统及安装模式。
Popularly, and amongst the thoughtless, it is held to include everything that is printed in a book. 多数人不暇思索便认定,文学涵盖所有印在书中的内容。
Population A group of interbreeding organisms of the same species (or other groups within which individuals may exchange genetic information) occupying a particular space. 种群:指占据特定空间的、具有潜在杂交能力的同一种植物的个体群(或者与其它个体群的个体进行基因交流)。
Population Carrying Capacity Belongs To Social Category Or Natural Categoey? 人口容量属于社会范畴还是自然范畴?
Population Index – covers all fields of interest to demographers, including fertility, mortality, population size and growth, migration, muptiality and the family, and research methodology. 人口索引向人口学家,包含死亡人数,人口数量和成长,迁移,结婚率和家庭的研究方法覆盖所有的使人感兴趣的领域。
Population Reference Bureau –dedicated to providing timely and objective information on U.S. and international population trends. 人品参考资料局—关于美国的信息和国际人口倾向。
Population analysts say the country faces challenges, to ensure tomorrow's children have the services they need, from education to health care, that the economy stays healthy, and that we preserve the environment for future generations. 人口分析家说,美国面临许多挑战,要确保明天的儿童享受他们需要的教育和医疗保健等各种服务,要保持经济的健康发展,要为后代子孙保护好环境。
Population and family planning work was further strengthened. Fresh progress was made in the areas of land and resources administration, environmental protection, forestry development and ecological improvement. 人口和计划生育工作进一步加强。国土资源管理、环境保护、林业发展和生态建设等方面都做了大量工作,取得新成效。
Population dynamics The study of the factors influencing the fluctuations in numbers in a population or of its gene pool: the factors affecting birth and morality rates, immigration and emigration, and reproductive potential (for example, seed size, dispe 种群动态:主要研究影响种群及其基因库数量波动因素:这些因素影响种群内出生率、死亡率、迁入及迁出、生殖潜力(如种子的大小、传播以及休眠)。
Population growth has implications to everything, from housing and public services to pensions. 人口增长意味着一切,从住房到公共服务养老金。
Population growth is a global phenomenon, and others worry about strains on the natural environment. 人口增长是全球现象,但是有人担心,人口增长给自然环境带来负担。
 
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