“primary sampling unit”的概念、定义、翻译、参考文献-科学参考

单词	primary sampling unit
释义	primary sampling unit Mathematics ＞数理统计＞抽样与统计过程控制＞释义 primary sampling unit初级抽样单元＞数理统计＞抽样与统计过程控制＞释义 primary sampling unit一级抽样单元 primary sampling unit一级单元^†
随便看	upturned roof-ridge UPU upward upward bias upward causality upward compatibility upward concave upward continuation upward convex upward cumulation upward cut and fill stoping method upward deviation upward directed set upward/downward atmospheric radiation upward firing upward induction upward invasion of liver qi upward lighting upward-looking bowl sundial upward social comparison upward transition upwash upwelling up welling current upwelling deposit

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。