“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	primary aberration primary acoustical radiator primary active transport of nutrients in plants primary afferent primary afferent depolarization primary air fan primary air pollutant primary alcohol ethoxylate primary alkaline zinc manganese dioxide battery primary alkaline zinc/manganese dioxide battery primary amoebic meningo-encephalitis Primary and Middle School Library (Room) Rules primary and secondary primary and secondary equilibrium primary and secondary school buildings primary and secondary school teacher employment system primary and secondary school teacher flow system primary and secondary school teachers' training system primary antenna Primary Atmosphere hypothesis primary auditory cortex primary basin primary battery primary B cell deficiency primary beam

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。