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单词
second moment
释义
second moment
[?sek?nd ?m?um?nt]
释义
二次矩,二阶矩
英英释义
Noun
1. the expected value of the square of the deviations of a random variable from the point of origin
随便看
hard-skinned puffball
hard-skinned puffballs
Hard skin-tuberculosis
hard slag mass
hard sledding
hard sledging
hard sleeper
hard sludge
hard smoked fish
hard smoking
hard-snow
hard soap
hards-of-hearing
hard-soft
hardsoft acidbase principle
hard soft acid base principle
hard-soft acid-base principle
hard soil
hard-sold
hard-solder
hard solder
hard soldering
hard soldering alloy
hard soldering alloys
hard-solder joint
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更新时间:2026/11/5 1:10:01