“sampling without repeating”概念、定义、翻译-科学时代

单词	sampling without repeating
释义	化工词汇手册 sampling without repeating 不重复抽样，不放回式抽样
随便看	ECA--ECA (Economic Cooperation Administration) ECA (Economic Cooperation Administration) ECA (exterior common area) ECAFE （Economic Commission for Asia and the Far East） EC Agricultural Levies ecamsule ECAP (electronic circuit analysis program) Ecardines e-cash e-cash e-cash network ecastolol e-catalog ECA （Economic Commission for Africa） ECB ECB ECB ECB ECB ecballium Ecbatana ECB--ECB (Electronic Codebook) ECB--ECB (electronic codebook) ECB--ECB (European Central Bank) ECB--ECB (European Central Bank)

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。