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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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例句
随便看
reddington
red-dirt
red discoloration
red discolouration
reddish
reddish and whitish turbid urine
reddish-black
reddish black
reddish-blond
reddish-blonde
reddish-blue
reddish blue
reddish brown
reddish-brown
reddishbrown
reddish brown forest soil
reddish brown laterite soil
Reddish-Brown Lateritic soil
reddish brown leteritic soil
reddish brown rust spores
Reddish-Brown soil
reddish brown soil
reddish chestnut earth
reddish chestnut soil
reddish color
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更新时间:2026/6/14 10:59:02