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单词
first difference operator
释义
first difference operator
美
英
un.
一阶差分算子
网络
一阶差分运算元
英汉
网络释义
un.
1.
一阶差分算子
1.
一阶差分运算元
其中 Δ 表示
一阶差分运算元
(
First Difference Operator
), α 为平均漂浮项(Drift), t 为时间趋势项, k 为递延期數。
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更新时间:2026/10/11 3:41:15