“stratified sampling”的概念、定义、翻译、参考文献-科学参考

单词	stratified sampling
释义	stratified sampling 分层抽样分层抽样法分层取样
随便看	power circuit power circuit breaker power clutch power coastdown power coefficient power-compacted charge power company power condenser power conditioner power conditioning unit power conduit power connection power consumption power contactor power contour power control power control hydraulic units power-controlled power-controller power-control motor power-control ratio power-control rod power control rod power controls power-control servo

科学参考收录了1248194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。