“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	American Film Institute American Fisheries Society，AFS American Folk Art Museum american foulbrood disease American-France Alliance American Gauge Design Standard American Geophysical Union American Geophysical Uniong American geostationary meteorological satellite american ginseng American ginseng root-knot nematode disease American Graffiti American grassland classification American Historical Association American Holding Corporation American Horror Story American Indian art American Indian languages American indigenous architecture American Industrial Revolution American Institute for Conservation American Institute of Aeronautics and Astronautics American Institute of Aeronautics and Astronautics (AIAA) American Institute of Architects，AIA American Institute of Certified Public Accountants

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。