“separate ratio estimator”的概念、定义、翻译、参考文献-科学参考

单词	separate ratio estimator
释义	separate ratio estimator Encyclopedia 理学数据收集模式释 separate ratio estimator分别比估计分层随机样本下，对每层样本分别运用比率估计量，然后对各层的比率估计量进行加权平均得到的估计量。
随便看	open string open subbase open subcomplex open subfield open subgroup open submanifold open subscheme open subset open subspace open surface open syllable open system open system architecture open system architecture, OSA open system interconnection open system interconnection, OSI open system of hot water supply open system organization open systems and the corresponding interfaces for automotive electronics open systems interconnect reference model open tendering open tendering procurement open test device open tier open topological manifold

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。