矩

Computer simulation and design were performed on the basis of the method of moments by using a software package (IE3D), and a Finite-Difference Time-Domain code.

本文的计算机仿真和设计使用基于矩量法的软件工具包（IE3D），以及时域有限差分方法代码实现。

The study aims to evaluate the pricing of water utilities by generalized method of moments estimation.

主要介绍城市水价预测边际成本方法数学模型及其广义二阶矩估计的研究。

Numerical results are in good concordance with the method of moments. The results are also in good agseements with the geometric theory of diffraction.

通过本文方法与一般矩量法的数值结果相比较，说明本文方法的快速性和一致性；用本文方法和几何绕射法相比较，验证了本方法的正确性和有效性。

The numerical results were compared with the results obtained by the method of moments. It was shown that the computational efficiency was improved greatly and that the memory needed was reduced drastically.

将计算结果与传统矩量法进行比较，结果表明，基于离散小波变换的AWE技术在提高计算效率和节约存储空间方面具有明显优势。

The numerical results presented are compared with the results obtained by the traditional method of moments. It is shown that, especially for electrically large targets, the complexity of computation is obviously reduced without sacrificing much accuracy.

将计算结果与传统矩量法计算的结果进行了比较，数值结果表明：在不影响精度的前提下，尤其是对于电大目标问题，本文方法的计算效率大大提高。

The method of moments is used to establish the linear equationfunctions and the currents can be calculated by solving these functions.

利用矩量法建立线性方程组，通过求解这个线性方程组，得到各个基函数上的电流值，从而很容易地计算出天线的辐射和阻抗特性。

If the number of the wave bending moment cycles is large enough, the most probable extreme value will be the characteristic maximum value , and the design extreme value will be the design maximum value.

在真安海浪中，垂向波浪穹矩是一十随枇社程。在各国级范中，它通常取力在使用期中平均可能出现一次的最大值。

Secondly, it classifies the points in the current frame as moving points and static points by background subtraction .

该方法通过互帧差四次矩检测运动对象，利用背景减除对点分类，最后用彩色分水线算法得到运动对象。

By measuring the instantaneous value of short-wave spectrum, we can get an important parameter of the local ionosphere, foF2, and then work out the MUF of the electrocircuit.

通过对测试结果进行统计分析可以得出：短波频谱的一阶矩ICF和电离层F2层临界频率f0F2具有很好的相关特性，通过测量短波频谱的瞬时值可以得到本地电离层的重要参量f0F2，进而可以计算出电路的最高可用频率。

The difference is found between DD and the master event technique, multiplet relative relocation as well as the hypocentroid decomposition, the condition that span between events is much less than the event-station distance is must be satisfied for latter but not for former when the velocity lateral heterogeneity is not so strong.

研究认为：双差法与主事件法、多重相对定位法以及震源矩心分解法不同，在速度变化较弱的地区它并不需要满足事件之间的距离远小于事件到台站距离这个条件。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。