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

单词	elderly population
释义	elderly population Encyclopedia 法学老年型人口释 elderly population老年型人口 0～14岁人口数量占总人口数量30%以下，65岁及以上人口数量高于总人口数量7%的人口年龄结构。
随便看	transversal transversal array transversal block design transversal connection form transversal curve transversal design transversal disc transversal elliptic operator transversal field transversal filter transversal flow transversal frame transversal intersection transversality transversality condition transversality theorem transversal line transversally elliptic operator transversally orientable bundle transversally regular mapping transversal manifold transversal mapping transversal matching theory transversal matroid transversal momentum

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