fertility rate
英 [fəˈtɪləti reɪt]
美 [fərˈtɪləti reɪt]
人口出生率，生育率
英英释义
noun
- the ratio of live births in an area to the population of that area
双语例句
- High fertility rate is a big problem but one of the biggest problems is the early onset of the first pregnancy, and maternal death and child death is greatly enhanced if the mother is young.
高人口出生率是一个大问题，但是最大的问题之一是首次怀孕过早，如果母亲太年轻，母婴死亡率将极大地增加。 - Total age-specific fertility rate ( TFR) population model of China and its alarm forecasting
我国人口增长的总和生育率模型及人口预警 - Effect factors of oocyte fertility rate in routine in-vitro fertilization
常规IVF卵母细胞受精率影响因素的探讨 - A low fertility rate and increased life expectancy are the main reasons behind the rapid aging.
出生率低和人的寿命的增长是造成加拿大人口老年化速度增快的主要原因。 - Japan's fertility rate has dropped to1.34 children per woman, shrinking the pool of workers and consumers, and increasing the burden on younger employees to pay for an aging population.
日本的生育率已经降到了平均每个妇女生1.34个孩子，这使得劳动力和消费人群不断减少，年轻劳动者养活老龄人口的压力越来越大。 - By comparison, the fertility rate in developed countries has been stable, or falling.
比较而言，发达国家的人口出生率已稳定下来，或者说在下降。 - China previously had a target fertility rate – the average number of children born to a woman over her lifetime – of 1.8.
中国此前有一个1.8的目标生育率（即一个女人一生平均生育的子女数量）。 - Additional underlying factors are a deeply rooted cultural preference for sons, a falling fertility rate, and the one-child policy.
其余的潜在因素就是根基很深的对于儿子的传统偏爱，下降的生育率和一个孩子政策。 - The important factors affecting total fertility rate are economic development level, the general fertility rate, the child-bearing age and the level of urbanization.
影响中国总和生育率的主要因素有经济发展水平、一般生育率、生育年龄和城镇化进程等。 - Experimental results also showed a positive correlation between percentage of functional pollen and fertility rate.
正常花粉率与稔实率相关极显著。