“留守老人”的概念、定义、翻译、参考文献-科学参考

单词	留守老人
释义	留守老人 Encyclopedia 法学老年社会问题释 left-behind elderly留守老人因子女离开而留在原家庭中的老年人。根据中国对人口迁移流动的定义，严格意义上的留守老人指因子女离开（跨越县级以上行政区）半年及以上而留守在家的老年人。
随便看	massive compact halo object massive compact halo object，MACHO massive economy massive economy in Zhejiang province of China massive field massive galaxy massive halo massive head buttress dam massive hemoptysis massively online game massively parallel computer massively parallel computer, MPC massively parallel processing massively parallel processing, MPP massive multiplayer online role-playing game massive neutrino massive object massive open on-line course massive open online courses massive particle massive postpartum hemorrhage massive retaliation strategy massive set massive star massive stone consolidated filling

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。