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

单词	combined ratio estimator
释义	combined ratio estimator 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	solvothermal synthesis solvus Solwind SOM SOMA soma somaclonal variation soma cube Soma Dynasty Somali Somalia Somalia Bases Agreement with the United States Somalia Peninsula Somali Civil War Somali English Literature Somali Expel U.S.Peace Corps Somali-Italian Treaties Somali jet Somali National Alliance Somali Region Somali Revolutionary Socialist Party Somali-Soviet Military Assistance Agreement Somali's Resistance Against Colonialism Somali Youth Club Somali Youth League

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。