“dependency ratio”的概念、定义、翻译、参考文献-科学参考

单词	dependency ratio
释义	dependency ratio Encyclopedia 法学年龄释 dependency ratio抚养比人口中非劳动年龄人口数与劳动年龄人口数之比。又称抚养系数或负担系数。用百分比表示。
随便看	coordination balance coordination bond coordination bonding coordination catalysis coordination catalyst coordination chemistry coordination chemistry of technetium coordination compound coordination compound; complex coordination copolymerization of ethylene and polar monomers coordination distance for interference coordination effect coefficient coordination equilibrium coordination face coordination hydride hydrogen storage coordination induced rearrangement coordination-induced rearrangement coordination in system coordination ion coordination isomerism coordination mechanism coordination number coordination number of hydration coordination number of surface atom coordination-optimization of procedure's relations in the manufacturing process of steel plant

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