“分层抽样协方差”的概念、定义、翻译、参考文献-科学参考

单词	分层抽样协方差
释义	分层抽样协方差 covariance for stratified sampling
随便看	insurance compensation insurance conditions insurance conglomerate insurance contract insurance expense insurance for impaired lives insurance for land transportation insurance for life insurance for unemployment insurance instruction insurance lock insurance mechanism insurance money insurance notification insurance of credit guarantee insurance of works insurance policy insurance policy holder insurance portfolio insurance premium insurance premium of commercial enterprises insurance premium unexpired insurance reserve insurance risk insurance slip

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。