1) Dependency Rates
人口抚育比
2) Dependency Ratio of Population
人口抚养比
1.
Dependency Ratio of Population is an important statistical indicator which measures population age structure variety to the development influence of the social economy.
人口抚养比是衡量人口年龄结构变化对社会经济发展影响的重要统计指标。
3) child dependency ratio
受抚养儿童人口比
4) aged dependency ratio (population 65 years plus divided by population 15 to 64 years)
受抚养老年人口比
5) Artificial tending
人工抚育
1.
Measures such as artificial tending,chemical weeding and so on were taken to improve the lighting and humidity in the forest and develop a habitat unfit for Hylobitelus xiaoi.
为了探寻新的有效控制措施 ,2 0 0 0年以来作者在江西上饶地区、信丰等地探索采用人工抚育、化学除草等措施 ,改善林间透光度和湿度 ,造成不利于萧氏松茎象害虫生存的生境 (主要抑制成虫产卵孵化率 )。
6) population of being fostered
被抚养人口
补充资料：抚养比
见人口年龄结构。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条