1. 人口出生率,生育率：dewatering screen 沥水筛 | fertility rate 人口出生率,生育率 | critical position 临界位(置)
2. 受精率：fertility evaluation 土壤肥力评价 | fertility rate 受精率 | fertilization 受精
1. 911chaxun查询·英语单词
1. A moderate fertility rate is adjustable, and conducive to social and economic development.
2. Besides the achievements in health and education, another critical factor is the decline of China's fertility rate.
3. But the family planning policy should be open to changes, especially after a moderately low fertility rate is realized.
4. But if the total fertility rate declines to lower levels, about 39 percent of its population will be 60 years or older by then.
5. China's relative superiority in labor comes from its achievements in the promotion of people's health and education level and the decrease in fertility rate.
6. A country's fertility rate should be moderate in every sense of the term.
7. Research results show giant pandas have a relatively low fertility rate, which is even lower when the animals are in captivity.
8. France's fertility rate has risen steadily through increasingly generous tax exemptions for parents with children.
9. The continued decline in the fertility rate results mainly from the economic, social and cultural evolution of low fertility.
10. The total fertility rate of Chinese women fell below the replacement level, one of the lowest in the world.
noun
1. the ratio of live births in an area to the population of that area
expressed per 1000 population per year
Synonym: birthrate birth rate fertility natality