矩

Dielectric polarization: The response of a dielectric material to on electric field, producing an induced dipole-moment per unit volume.

电介质极化：介质材料对电场的响应，每单位体积上产生一个感应偶极矩。

An electromagnetic numerical analysis, set finite difference method, finite element method and the method of moments as one basis for teaching materials.

详细说明：一本的电磁数值分析方面的，集有限差分法，有限元法和矩量法为一体的基础教材。

In particular, the time-domain electric integral equation of second-order time differential coefficient is calculated by an explicit MOT solution.

本文利用时域矩量法及其与时域有限差分方法的混合法分析计算目标电磁辐射与散射问题。

Or the the ratio of far field divergence half angles defined by second moment and differential operator.

或以二阶矩和微分算子定义的远场发散角半宽度的比值。

Differential scattering field of vertical incident Gaussian beam from a two-dimensional target near a plane interface is studied by means of a new hybrid method based on the reciprocity theorem, the image theory and the method of moment.

基于矩量法、互易性定理及镜像理论，提出了一种新的混合方法用于研究水平分界面上方二维介质目标对垂直入射高斯波束的差值散射场。

An unmagnetic material which permanent magnetic distance and single electron are zero is selected as magnetic diluter system. The magnetic strength of high magnetic nanomaterials CoFe2O4 has been characterized using Gouy magnetic balance by adding magnetic diluter system in samples so that the high magnetic of nanoparticles is diluted. The magnetic strength with different nanoparticles size is studied.

采用永久磁矩和未偶电子为零的无磁性物质为磁稀释体系，将纳米材料的强磁性稀释后，用Gouy磁天平表征了不同粒径系列的强磁性纳米材料CoFe2O4的磁化强度，探讨了纳米材料粒径与磁稀释体系磁化强度的关系。

A new algorithm based on the method of moments is introduced for the scattering analysis of two dimensional targets.

针对二维目标电磁散射特性分析问题，提出了一种基于传统矩量法的新算法。

In one of the four cases, the dipole magnetic moment of the wire frame is zero.

在其中的4起案件，偶极子磁矩的线框是零。

We now show how to calculate molecular dipole moments from wave function.

我们现在说明如何从波函数来计算分子的偶极矩。

The molecular electronic structures and dipole moments are calculated by use of density functional theory at ab initio level.

分子的电子结构和电偶极矩是基于密度泛函理论利用从头计算方法得到的。

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。