“老年抚养比”的概念、定义、翻译、参考文献-科学参考

单词	老年抚养比
释义	老年抚养比 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	design codes for concentrators design comment Design Committee under China Packaging Federation design communication design competitiveness design constraints design context research method design contract design control of rock engineering Design Coucil design course program design criteria for farmland drainage Design Criteria For Ontologies design criticism design deliverables design depth design directivity design director design discharge for surface waterlogging control design documents Design driven innovation design driven innovation designed distance designed life of nuclear power plant designed resource reserves

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。