“分级随机抽样法”的概念、定义、翻译、参考文献-科学参考

单词	分级随机抽样法
释义	分级随机抽样法 Encyclopedia 农学分级随机抽样法释 multi-stage random sampling分级随机抽样法将总体看为不同级别大小的抽样单元组成，然后对不同级别的抽样单元分级进行随机抽样的方法。又称多级随机抽样法、多阶段随机抽样法、巢式随机抽样法。
随便看	defends seizes of military town defense defense command defense commissioner defense economic thought defense-in-depth architecture defense lawyer Defense Map of the Great Coast defense mechanism defense of first-performance defense of negotiable instrument defense of psychological operations defense of respiratory system Defense of Sihang Warehouse defense of uncertainty defense of unperformed contract Defense Satellite Communication System Defense Science and Technology Thesaurus defense system analysis Defense Technical Information Center defense wound defensible space defensin defensive behavior of livestock defensive competitive intelligence

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。