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- second moment matrix 二阶矩矩阵
- In the last days of the second moment a great war is to be concluded with judgment and a global conflagration lasting 1,468 years. 在第二片刻的最后日子，一场世界大战最后是随着审判而来，一场全球的大火灾持续了1，468年。
- The parameters of the model are fuzzily processed and the fuzzy risk can be evaluated by using the modified first order second moment method. 通过对模型中的参数进行模糊化处理，用改进一次二阶矩法计算了地下水过量开采的模糊风险率。
- It has also been shown that the relationship between the second moment and the square of peak width at1/4 height is linear. 并证明了二阶矩与1／4峰高处峰宽的平方成线性关系。
- Parameters, based on the NGLDM, such as fineness, coarseness, entropy, second moment, and non uniformity parameter were introduced to describe the texture of froth. 引入了基于该矩阵的细度参数、粗度参数、二阶距参数、熵参数及不均匀性等特征参数来描述泡沫的结构 .
- The second moment of the least squares estimator in the nonlinear regression model is obtained in this paper in terms of two kinds of curvatures defined by Bates and watts. 本文从似然方程的二级近似出发,求出了非线性回归模型最小二乘估计量(LSE)的二阶矩与Bates and Watts定义的二种曲率之间的关系。
- fractional low-order moment matrix (FLOM) 分数低阶矩
- Furthermore the computer program ISM for analyzing structural reliability is developed by using Advanced First Order Second Moment method and Important Sampling Monte-Carlo method. 分析了4种损伤：即疲劳、凹坑、腐蚀和海生物损伤，并推导出时变构件可靠性计算的有关公式。
- For large curvature arch, the neutral axis does not pass through the centroidal line of the cross-section, so the moment of inertia is not consistent with the second moment of area. 大曲率拱中,截面形心轴与中性轴不重合,其截面抗弯惯性矩与不考虑曲率影响的截面面积二阶矩有一定的差别;当截面尺寸相对拱弧长来说较大时,此时拱为深拱,剪切变形的影响不能忽略。
- Practically, the application of options implied second moment, implied volatility, is very popular, but the study of implied third moment, skewness, and fourth moment, kurtosis, is seldom. 摘要:实务上，选择权价格所隐含之二阶动差（即波动率）应用得非常普遍，但有关所隐含三阶动差（偏态）及四阶动差（峰态）之研究则较为少见。
- part second order and second moment method 部分二次二阶矩法
- First Order Second Moment method 一次二阶矩法
- He singled and went to second on a passed ball. 他击出一垒打，再因对方漏接而跑上二垒。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- advanced first order and second moment method 改进一次二阶矩法
- It travels thousands of miles per second. 它一秒钟能走几千英里。
- The second snub settled his hash. 第二次碰壁使他不敢再找麻烦了。
- The second term commences in March. 第二学期自三月开始。
- He kicked the car down from third to second. 他把汽车排档从3档降为2档。
- Her second novel was taken apart by the critics. 她的第二部小说受到评论家的严厉批评。
