“aging of population”的概念、定义、翻译、参考文献-科学参考

单词	aging of population
释义	aging of population Encyclopedia 法学老年期释 aging of population群体老化在一个人口群体中，随着平均预期寿命的提高，老年人口在总人口中的占比不断上升的状态和趋势。又称人口老化、人口老龄化。
随便看	bookbinding bookbinding and layout bookblock processing book circulation modes book classification in store book club edition book club rights book collector Book Design Art Working Committee under the Publishers Association of China book direct sale book discount book dispatch book distribution book distribution agency book distribution major book distribution management book edition Booker Taliaferro Washington book excerpt BookExpo America book fair book gill book graph Book History book history

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