人口比重英文

流动人口在总人口中占了很大比例占很大比例Floating population accounts for a great proportion of the total population.

what is the percentage of chinese population to world population?

年龄结构：各年龄组在人口总数中的比重 age composition: the proportion of different age groups in the population as a whole / age composition: the proportion of different age groups in the total / entire population