“分层抽样”概念、定义、翻译-科学时代

单词	分层抽样
释义	工程与技术词汇手册 stratified sampling 分层抽样
随便看	controlled temperature container controlled term controlled thermonuclear fusion controlled thermonuclear reaction controlled thermonuclear reactor controlled thermonuclear research controlled trade controlled trial controlled value for pneumatic pressure controlled variable controlled variable controlled variable controlled vortex design controlled war controller controller controller controller controller controller controller controller controller controller controller for CATV

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

stratified sampling