“联合比估计”的概念、定义、翻译、参考文献-科学参考

单词	联合比估计
释义	联合比估计 Encyclopedia 理学数据收集模式释 combined ratio estimator联合比估计分层随机样本下，分别计算出目标变量与辅助变量的总体特征的分层估计量，然后用对应的分层估计量来构造比率估计所得的估计量。
随便看	Souphanouvong source source abatement of urban non-point source pollution source alphabet Source and Course of New Literature in China source apportionment source array source-based tree source-based tree, SBT source bed source branch of a network source brightness source brightness distribution source code source code audit source coding source coding technology source coding theorem source coding theory source coding with side information source contribution ratio source control source control facilities source control of pollutants source control system by sponge city facilities

科学参考收录了854744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。