“productive aging”的概念、定义、翻译、参考文献-科学参考

单词	productive aging
释义	productive aging Encyclopedia 法学老年人社会参与释 productive aging老有所为老年人以自身需要为基础，在自愿和量力的前提下，以直接或间接形式参与有益于社会、家庭或个人发展的各项活动。
随便看	essential torus essential trace element essential tremor essential undecidability essential valuation essential value essential variable Essential Writings on Calligraphy essential zero Essequibo River ess.inf ess.sup EST established by usage establishiment of contract establishing identity Establishing New Political and Economic Order for the World establishing of factory system establishment agriculture machine establishment and approval of museum establishment of company establishment of presses establishment of the port Establishment of the Socialist Economic System establishment of water quality standard

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。