America even managed to reach the replacement rate of 2.1, meaning its population was sustaining itself, without taking migration into account.
美国甚至达到2.1的人口置换率,这意味着,在不考虑移民的情况下,该国人口基本保持不变。
单词 | Replacement rate |
释义 |
Replacement rate
原声例句
经济学人(汇总) America even managed to reach the replacement rate of 2.1, meaning its population was sustaining itself, without taking migration into account. 美国甚至达到2.1的人口置换率,这意味着,在不考虑移民的情况下,该国人口基本保持不变。 经济学人-国际 The pattern of swift, uninterrupted decline is now taken as the norm: the UN uses it to project a worldwide convergence towards the replacement rate of fertility (2.1, the rate at which a population stabilises in the long term) . 现在,生育率快速连续的下降趋势已被人们视为正常:联合国用这种趋势来表示世界性趋同的人口替换率(2.1,人口长期稳定时的人口增长速率)。
中文百科
总和生育率 Total fertility rate(重定向自Replacement rate)
![]() ![]() 总和生育率(英语:total fertility rate,简称TFR),有时也简称生育率,反映妇女一生中生育子女的总数。一般来讲总和生育率至少要达到2.1,才能完成世代更替,但许多国家的财税、社会及福利制度是创建在生育率更高(人口成长)才能维持的基础上。 目前世界的总和生育率约为2.5。2010年人口普查没有提供中国大陆的总和生育率数据, 有人算出仅为1.18。但国外一般采取更合理的数字1.55。新加坡、香港、澳门等华人国家和地区的总和生育率也都低于1.2,为世界最低水平。
英语百科
Total fertility rate 总和生育率(重定向自Replacement rate)
![]() ![]() ![]() ![]() The total fertility rate (TFR), sometimes also called the fertility rate, period total fertility rate (PTFR) or total period fertility rate (TPFR) of a population is the average number of children that would be born to a woman over her lifetime if: It is obtained by summing the single-year age-specific rates at a given time. |
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