Autocovariance matrix
[计] 自相关矩阵
🧩 词语组成解析
[计] 自共变
🗣️ 情景例句
But now ...
但是现在……
He always finds fault with everything.
他总是找任何事情的毛病。
I think it's under the table.
我想可能在桌子底下。