积差函数;协方差函数

covariance function的用法和样例：

例句

The first one is chosen using time series method, and the second is obtained from measurements using the autocovariance function of the stationary stochastic process.二是应用平稳随机过程的自协方差函数从双差观测值中提取的正则化矩阵。

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学英语单词

aftertouch

Alcor (80 UMa)

Allocational Efficiency