“three rural left-behind groups”的概念、定义、翻译、参考文献-科学参考

单词	three rural left-behind groups
释义	three rural left-behind groups Encyclopedia 法学农村释 three rural left-behind groups农村三留守群体因家庭主要劳动力进城务工经商或从事其他生产经营活动而留守在农村生活的三类人群，即留守老人，留守妇女，留守儿童。为中国社会转型时期出现的特有社会现象。
随便看	oceanic mineral resources oceanic mineral resources survey oceanic mixed layer oceanic nitrogen cycle oceanic oscillation oceanic oxic event oceanic rare earth resource survey oceanic red beds oceanic rise oceanic sounding equipment oceanic system oceanic water mass change oceanic whitecaps ocean interfacial waves ocean internal wave oceanium ocean-land carbon reservoir exchange ocean lidar ocean literature ocean magnetology ocean meteorological hazards ocean mixing Ocean modeling and simulation ocean observation system of magnetic diurnal variation ocean observation technology

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。