自相关相容协方差
heteroskedasticity and autocorrelation consistent
正定协方差
positive definite covariance
预测误差协方差
predicting covariance
prediction error covariance
预报误差协方差
Forecast error covariance
遗传方差与协方差
Genetic variance and covariance
遗传方差和条件遗传方差
Genetic variance and conditional genetic variances