- second moment
- secondary moment
- secondarymoment
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二阶矩的英文
例句与用法
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- 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。 - This paper inquires into the problem of finding an upper bound for the expectation of recourse function when only first and second momen t constraints are available
探讨了在随机向量的一阶矩和二阶矩条件下，寻找补偿函数的期望值的一个上界的问题 - The performance of highly nonlinear mapping for neural network was adopted to supply an explicit expression , so the method such as firstorder reliability method can be used again
该方法利用神经网络的非线性映射能力，构造出显式表达的极限状态方程，从而可以很方便的引入一次二阶矩等其他基本求解方法进行结构可靠度分析。 - Give an example , for a built arch dam , the paper worked out calculational programme based on the calculational model and calculate the reliability index of abutment with simple and double quadrature method
对于一已建成的拱坝，利用这一计算模型，采用改进一次二阶矩法，编制电算程序，计算该拱坝坝肩岩体的可靠指标。 - The results reveal that calculation errors can be reduced with the linear expending nodes , which can be found out by anti - inference method , decided on the limiting equilibration surface based on the advance losm method
结果显示，用改进一次二阶矩法将线性展开点（可用反算法求得）选在极限平衡状态面上，可减小计算误差。