“three-stage sampling”概念、定义、翻译-科学时代

单词	three-stage sampling
释义	统计学词汇手册 three-stage sampling 三级抽样
随便看	dust characteristic dust cloud dust cloud dust collecting cyclone dust-collecting electrode dust collection efficiency dust collector dust collector dust collector dust collector dust collector dust collector dust colour dust concentration dust control by flux force/condensation scrubbing dust control by steam dust cooled reactor dust core dust counter dust cover dust deposit dust devil dust devil dust devil dust devil

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。

three-stage sampling