“old dependency ratio”的概念、定义、翻译、参考文献-科学参考

单词	old dependency ratio
释义	old dependency ratio Encyclopedia 法学年龄释 old dependency ratio老年抚养比人口中老年人数与劳动年龄人数之比，以百分数表示。又称老年抚养系数。
随便看	breaking point breaking-point breaking-point formula breaking point of fiber breaking strength breaking strength of fiber breaking strength of single fiber breaking stress breaking switch breaking tenacity of fiber Breaking the Beadstrings breaking time of fiber breaking waves break in the diplomatic relations between Ivory Coast and USSR break junction breakpoint breakpoint combination breakpoint switch break the restraint Breakthrough breakthrough breakthrough concentration breakthrough recovery breakup breakup and multiplication of raindrops

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