“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	radio-frequency band radiofrequency catheter ablation by atrial fibrillation radiofrequency catheter ablation by ventricular premature beat radiofrequency catheter ablation by ventricular tachycardia radiofrequency catheter ablation of atrial flutter radiofrequency catheter ablation of atrioventricular junctional reentrant tachycardia radiofrequency catheter ablation of atrioventricular reentrant tachycardia radio frequency cold crucible method radio frequency communication radio frequency communication, RFcomm radio frequency current radio-frequency current drive radio-frequency discharge radio-frequency disk radio frequency frontend radio-frequency heating radio-frequency heating, RF heating radio frequency identification radio frequency identification data radio frequency identification data, RFID data radio frequency identification devices reader radio frequency identification devices reader, RFID reader radio frequency identification devices tag radio frequency identification devices tag, RFID tag radio frequency identification in civil engineering

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。