in proportion
老年人口比例
proportion of aged population
暂无补充释义。
相关词条
population proportion【数】
proportion
proportion
facial square root 2 proportion
a small proportion of
optimal proportion
in proportion (to/with)
proportion of aged population
暂无补充释义。
in proportion
population proportion【数】
proportion
proportion
facial square root 2 proportion
a small proportion of
optimal proportion
in proportion (to/with)