“International Day of Older Persons”的概念、定义、翻译、参考文献-科学参考

单词	International Day of Older Persons
释义	International Day of Older Persons Encyclopedia 法学〔基本概念〕释 International Day of Older Persons国际老年人节由联合国设立的节日，旨在呼吁人类关注老龄化问题。
随便看	radioactive level meter transmitters radioactive life radioactive marker radioactive material radioactive materials radioactive measurement method radioactive meterverification/calibration radioactive mineral radioactive mineral resource survey radioactive nuclear beam radioactive nuclei beam radioactive nucleus radioactive nuclide radioactive nuclide; radionuclide radioactive ore deposit radioactive pollution accident in Brazil radioactive prospecting radioactive purity radioactive reference materials radioactive reference source radioactive relay radioactive repository in urban radioactive seed radioactive seed implantation radioactive series

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。