“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	The PMO-13.7m Millimeter-wave Radio telescope The Poem about Qiuhu The Poem of Maninbo The Poem of the Cid The Poems of Mr.Hang Shuangxi The Poetic Instructions for Children the poetics of history The Poetry Collection of Shi Cong The Poetry Concept of Meng Zi The Poetry Concept of Xun Zi the poetry of singing tea the poets of San Francisco The Police Association of China the police communication the policies of civil proceedings the policy bank law the policy of opening to the outside world the policy of water resources The Polish Peasant in Europe and America the political case of eunuch Wei Zhongxian and his followers the political institutional basis of urban development in China The Political Program of Zhenguan Period The Political System of Empires The Political Systems of the Burma Plateau the political thought in Wei，Jin，South and North dynasties of China

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。