英语词汇“second moment”的意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-ABC网

单词	second moment
释义	second moment 汉语翻译【化】二次矩英语解释：名词 second moment: the expected value of the square of the deviations of a random variable from the point of origin
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英语词典包含435040条英汉在线翻译词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

second moment