网络释义专业释义英英释义
...式进行求解，并可以进一步描述溶剂化电子空间分布函数最基本的两个参数：分布函数的一阶矩(First moment)和二阶矩(Second moment) 电子清除剂金属光电子注入法的另一个用途是研究某些化学反应的机理。
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Angular Second Moment 二阶距 ; 角二阶矩 ; 能量
second moment norm 二阶矩范数
First Order Second Moment 第一阶第二次矩 ; 一次二阶矩
second moment of mass 惯性极矩 ; 质量二次矩
First-order Second-moment Method 一次二阶矩法
linear second moment 线性二阶矩
second moment matrix 二阶矩矩阵
second-moment criterion 二阶矩准则
transformed second moment 第二个转变时刻 ; 第二个瞬间转换
second moment
- n. the expected value of the square of the deviations of a random variable from the point of origin
以上来源于: WordNet
双语例句原声例句权威例句
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The second moment creep time of DZ4 superalloy rapidly decreases with the increasing of temperature and stress.
随着温度的升高和应力的增加，DZ 4合金蠕变第二阶段的时间迅速减少。
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The divergence Angle of light beam was measured with the method of CCD imaging and computed by second moment method.
通过CCD成像方法对准直后的光束发散角进行了测量，利用二阶矩算法计算出光束发散角。
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A first order second moment formulation for systems fatigue reliability assessment of offshore structures is presented.
本文提出了海洋平台结构系统疲劳可靠性分析的一阶二次矩方法。
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Secretary Clinton says Afghanistan is at a critical moment in its history on the eve of the inauguration of President Hamid Karzai's second term.
VOA: standard.2009.11.18
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The second section runs from stanzas nine through seventeen, and it characterizes the song that the heavenly choir sings at the moment of the Nativity.
第二部分从第九行到第十七行，这一部分展示了基督降生时天国的唱诗班,唱了一首什么样的歌。
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Yeasts suggests that we think of this historical moment as the Second Coming.
叶芝建议我们,把这个历史性的时刻,想成是第二次降临。
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