“分层抽样”的概念、定义、翻译、参考文献-科学参考

单词	分层抽样
释义	分层抽样 Encyclopedia 理学【核心概念】释 stratified sampling分层抽样将总体单元按其属性特征分成若干类型或层，然后在类型或层中随机抽取样本单元的概率抽样方法。又称类型抽样、分类抽样。 Mathematics ＞数理统计＞抽样与统计过程控制＞释义 stratified sampling分层抽样 stratified sampling分层抽样^† Chemistry ＞分析化学＞化学计量学＞释义 stratified sampling分层抽样
随便看	spike pulse spike recovery spiketooth harrow spiking spiking behaviour spiking isotope spiking period spiking tracer spilite spill spillage spillage-ore recovery drift spilled oil recovery at sea spilling Spillings Hoard spillover spillover effects spill over hydrogen effect spill-over hydrogen effect spillover phenomena spillover radiation spillway spilth spilt lens SPIN

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。