population balance
... 人口老化链 aging chain 人口平衡 population balance 人口趋势 population trend ...
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人口长期平衡发展 further implementation to promote a long-term
人口与就业平衡 balance of population and employment
人口平衡的健康状况有助于社会团结和稳定。
Balanced health status within a population contributes to social cohesion and stability.
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