“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	structural safety design structural safety factor structural search structural section thermal-vibration test structural seismic response control structural seismic tests Structural Semantics structural semantics structural separation structural shield structural shrinkage structural slope-break zone structural sociology structural software system structural stability structural stability and bearing capacity test structural stability for missile/spacecraft structural stability problem structural statics structural static strength structural static test structural stealth composite material structural steel structural stiffness test structural stratigraphic unit

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。