replacement rate

置换率:指一个群体中每一代人的平均生育率与平均死亡率之间的比率。在人口学中

常用释义

词性释义

置换率:指一个群体中每一代人的平均生育率与平均死亡率之间的比率。在人口学中,置换率通常用来衡量一个国家或地区的人口增长趋势。
例句
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1·The UK's replacement rate is 1.7 and Italy's is 1.2.
英国的人口替换率是1.7;意大利是1.2。
2·they are on target to achieve a replacement rate of between 35% and 55%, depending on the country.
而他们能够得到的目标替换率根据国家不同将介于35%至55%之间。
3·Replacement rate — The level of total fertility that is compatible with a stationary population.
替换率——用来协调静止人口的总出生率级别。
4·By about 2020, the global fertility rate will dip below the global replacement rate for the first time.
到2020年左右,全球生育率将第一次低于全球生育等值替换水平。
5·Sometime between 2020 and 2050 the world's fertility rate will fall below the global replacement rate.
世界人口生育率将在2020至2050年期间降至世界生育替代率水平以下。
6·America is the only rich country that, having fallen below the replacement rate, has risen back above it.
美国是发达国家里唯一一个先是跌破更替生育率,后又反弹超出的国家。
7·I am well aware of the dire consequences of fertility falling below the replacement rate in the long run.
其实,我当然了解人口替代不足在一段时日之后将为我国带来多大的麻烦。收藏。
8·That number, the so-called replacement rate, is usually taken to be the level at which the population eventually stops growing.
1被称作是替换率,这通常被作为人口最终会停止增长的生育率水平。
9·The influence of recycled coarse aggregate replacement rate on properties of concrete with the same slump is discussed in the paper.
系统研究了坍落度相同的情况下再生粗骨料取代率对混凝土基本性能的影响。
10·The American fertility rate is around the replacement rate of 2.1, compared with 1.4 for Germany and Italy, where populations are in decline.
美国的出生率为 2.1 ,很接近人口更替率,但是德国和意大利的出生率只有 1.4 ,也就说人口数量在下降。