“social security system”的概念、定义、翻译、参考文献-科学参考

单词	social security system
释义	social security system Encyclopedia 法学社会治理释 social security system社会保障体系　由社会保险、社会福利和社会救助三个子系统构成的社会保障大系统。
随便看	periodontal treatment agent periodontitis period pair period parallelogram period parallelotope period point period-radius relation period ratio period relation period resolution periods of an elliptic curve period-spectrum relation period strip Period Style period-three theorem period variation period vector perioheral nerve entrapment syndrome perioperative body temperature management perioperative period periopticon perioral dermatitis periorbita periosteum peripatetic school

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。