“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	mine emergency rescue system mine engineering database mine engineering geology mine engineering geology problem mine engineering geophysics mine environment mine environmental impact assessment mine environmental management mine environmental monitoring mine environmental risk mine explosion-proofing logging mine feasibility demonstration report mine filling system mine filling system design mine fire mine fire control by clay grouting mine fire control by inert gas mine floods mine gas mine geological disaster mine geological environment mine geological environmental survey mine geological radar mine geological radar data processing mine geological work

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。