“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	neuter flower neutral neutral absorbent neutral aluminium air cell neutral atmosphere neutral atom neutralator neutral balance neutral beam current drive neutral bilinear form neutral burning neutral color neutral complex neutral current neutral current, NC neutral current sheet neutral curve neutral density disc neutral [density] filter neutral density filter neutral detergent fiber neutral differential equation neutral earthing device of hydro-generator neutral element neutral equation

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