- cross covariance
- 交叉: cross connection; intersect; ...
- 交叉协方差向量: cross-covariance vector
- 协方差: convariance; cov(covariance); covariance matrix; kovarianz covariance
- 方差-协方差矩阵: variance covariance matrix; variance-covariance matrix
- 表型协方差: phenotypic covariance
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