1.
Demographors are perhaps best known for making population projections.
人口学家或许在人口预测上最为知名。
2.
Committee of Planners, Statisticians and Demographers
规划人员、统计人员和人口学家委员会
3.
Selectivity of human migration has long been the focus of demographers and economists.
人口迁移的选择性一直以来都是人口学家和经济学家关注的焦点。
4.
a scientist who studies the growth and density of populations and their vital statistics.
研究人口增长、密度和人口统计的科学家。
5.
By 2025, scientists predict the world will have 7.8 billion people.
到2025年，科学家预测世界人口达78亿。
6.
International Association of French-Language Demographers
国际法语人口统计学家联合会
7.
Conference of African Demographers of ECA
非洲经委会非洲人口统计学家会议
8.
The statistics were later challenged by U.S.
不过，美国国家统计局人口统计学家珍妮?
9.
World Population Society
世界人口学会(人口学会)
10.
Arab-Americans make up 3 million of the population in the United States, according to demographers.
人口统计学家称，目前阿拉伯裔美国人共有300万。
11.
Professor Antonio Golini is a demographer at the University of Rome.
罗马大学安东尼奥教授是位人口统计学家。
12.
Demographers have calculated that the world's population will double by the end of the twentieth century.
人口统计学家推算到了二十世纪末世界人口会加倍。
13.
Demographers say a rate of 2.1 is needed to keep a population from declining.
人口统计学家指出，生育率必须达到2.1，才能防止人口减少。
14.
Consejo Nacional de Poblacion y Familia
国家人口和家庭委员会
15.
The sample demographic data was compared with the 5th national census data in 2000 and the demographical indicators data in 2002 from the National Bureau of Statistics
将样本人口资料与2000年第五次人口普查数据和国家统计局2002年人口学指标比较，
16.
The scientist redefined the relations between population and economic affairs.
这位科学家重新说明了人口和经济之间的关系。
17.
Regional Meeting of Experts on Population and Family Planning Education in Schools
学校人口与计划生育教育问题区域专家会议
18.
Population Matter of Condensation Model Countries on The View of Economics;
压缩型国家人口问题的经济学根源探究