covariances 📖 中文释义 (covariance 的复数) n. 协方差[化] 协方差 🧩 词形变化 原形 covariance 📘 English Definition(英文释义) plural of covariancen. (statistics) the mean value of the product of the deviations of two variates from their respective means ← covariance stationary process C 字母词表 covariant →