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second moment中文什么意思

发音:   用"second moment"造句

例句与用法

    更多例句:  下一页
  1. There . your second moment . that ' s another $ 50
    又拍了第二张,再加50块
  2. There . your second moment . that ' s another 50
    又拍了第二张,再加50块
  3. Second moment of area of tranformed section
    换算截面惯性矩34
  4. Second moment of area
    截面惯性矩
  5. It has been shown that the m2 values of semiconductor lasers , which are defined by the second moments , are always larger than unity
    理论和实验结果表明,在二阶矩的定义下,半导体激光光束的质量因子总是大于1的。

英文释义

名词
  1. the expected value of the square of the deviations of a random variable from the point of origin

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其他语言

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