单词：variance component
variance component的用法和样例：
例句
- Two way classification models with random effects are used widely.The variance components in these models are often estimated by ANOVA estimates.摘要两向分类随机效应模型是一种有着广泛应用的统计模型，对其中的方差分量，经常使用方差分析法来估计。
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