“农村空巢老人”的概念、定义、翻译、参考文献-科学参考

单词	农村空巢老人
释义	农村空巢老人 Encyclopedia 管理学农村常住人口释 rural empty nesters农村空巢老人无子女或有子女但常年不与子女生活在一起，独自居住或与老伴一起居住在农村的60周岁及以上的老年人。
随便看	set of natural numbers set of non-uniqueness set of nowhere dense set of numbers set of objectives set of objects set of observations set of pairs set of points set of poles set of premises set of procedures for manufacturing process set of procedures' relations set of procedure’s functions set of reachable markings set of real numbers set of representatives set of second category set of sentences set of separability set of sequences set of series set of sets set of small measure set of solutions

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。