1.
the ratio of live births in an area to the population of that area; expressed per 1000 population per year.
出生人口与本地区人口的比率；每年有人出生。
2.
The year 1998 saw 19.91 million births with a crude birth rate of 16.03 per thousand, and 8.07 million deaths, representing a crude death rate of 6.50 per thousand.
全年出生人口1991万人，出生率为16.03‰；死亡人口807万人，死亡率为6.50‰；
3.
These problems include the high sex ratio and the growing population aging.
例如出生人口性别比偏高、人口老龄化等。
4.
INTERNAL MIGRATION OF THE FOREIGN-BORN: POPULATION CONCENTRATION OR DISPERSION?
外国出生人口的国内迁移：人口集中还是分散？
5.
We will keep the birthrate low and improve the health of newborns.
稳定低生育水平，提高出生人口素质。
6.
our large nonnative population.
我们庞大的非本国出生人口。
7.
The birthrate is on the decrease.
人口出生率正在下降。
8.
International Fertility Societies
国际人口出生率学会
9.
ferility control program
人口出生率控制计划
10.
International Fertility Associatio
国际人口出生率协会
11.
the proportion of births to the population
相对于人口数的出生率
12.
The birth rate is the number of births compared to the number of the people.
出生率是出生数与人口数的比率。
13.
vital statistics ( statistics relating to population figures or births,marriages and deaths)
人口动态统计（人口数字或出生、婚姻、死亡的统计）.
14.
Analysis the Reason of Infant Born of Low Weight of the Floating population and Resident Population
流动人口与常住人口低出生体重儿原因分析
15.
The Impact of the Migrant Population on Shanghai’s Sex Ratio at Birth;
外来人口对上海市人口出生性别比的影响
16.
Beijing's birthrate was 6.1 per thousand, death rate, 5.3 per thousand, and the natural population growth rate was 0.8 per thousand, down by 0.1 permillage points.
全市人口出生率为6.1‰，人口死亡率为5.3‰，人口自然增长率为0.8‰。
17.
You may have heard of Birth Control.
你们也许听说过控制人口出生的措施。
18.
The birth rate dropped in the 1980's.
人口出生率在20世纪80年代下降了。