本文采用将高斯波束法，射线追迹和矢量衍射积分相结合的方法来分析单波束的点聚焦透镜天线。
We adopted Gaussian beam, ray tracing and vector diffraction integration together to analyze single beam spot-focusing lens antenna.
利用积分方程方法以及半空间并矢格林函数的快速算法对埋地目标体矢量电磁散射进行正演计算。
Forward electromagnetic scattering by buried objects is computed with the integral equation method and efficient algorithm for half-space dyadic Green's functions.
分别用矢量图解法和积分法导出了菲涅耳圆孔衍射中心场点的光强的解析表示，方便了此类问题的分析。
An analytic expression for the intensity of the central point in Fresnel's circular aperture diffraction was derived using the methods of vector map and integration respectively.
提出了矢量函数积分中的坐标选择问题。
The coordinate selection in vector functional integration is raised.
统计物理教材中分子构型配分函数的计算，一般是将双矢量积分化简为单矢量积分。
In statistical physics lectures, the calculation of the configuration partition function of molecule is simplified from double vectors integral to single vector integral.
给出时谐电磁场矢量的积分关系式，探讨了辐射场的有效源，并应用于几个实例的计算。
The integral relationships of time-harmonic electromagnetic field vector are given, the effective sours of radiative fields is Studied, then some examples are calculated.
本文将准正交高阶叠层矢量基函数用于时域电磁场积分方程(TDIE)，求解了三维金属目标的时域电磁散射问题。
The near orthogonal hierarchical vector basis functions are used for solving three-dimensional time-domain electromagnetic integral equations (TDIE) of the metallic object.
该文开发了一种应变速率矢量的线性化积分方法。
为此它以矢量磁位的积分表达式和洛仑兹规范代替了矢量磁位和标量电位的积分表达式，对积分方程进行展开。
To do that, the integral definition of vector magnetic potential and the Lorentz gauge is used to expand the integral equation of the PEEC model.
矢量的面积分方程因其被积函数具有高阶奇异性，不能直接应用于数值计算。
The vector surface integral equation can't be applied to numerical computation directly because its integrands possess the high order singularity.
微分几何包含这样的概念：纤维束和流形上的微积分，特别是矢量与张量微积分。
Within differential geometry are the concepts of fiber bundles and calculus on manifolds, in particular, vector and tensor calculus.
空间太阳望远镜(SST)系统采用图像积分方法提高太阳矢量磁图的信噪比(SNR)。
In the space solar telescope (SST), the image integration method is used to increase signal-to-noise ratio (SNR) of the solar magnetic field images.
针对滑模变结构控制的抖振问题，提出一种用于异步电动机矢量控制系统的积分滑模变结构速度控制方法。
A strategy of speed control for vector-controlled asynchronous motor drive system using sliding mode variable structure control with an integral action was proposed.
根据德拜矢量积分理论，研究了部分相干圆偏振涡旋光束的深聚焦特性。
Based on vectorial Debye theory, the tight focusing properties of partially coherent and circularly polarized vortex beams are investigated.
系统采用基于矢量运算的恒频积分算法，设计三相三线并联型有源电力滤波器PAPF。
The system adopts Unified Constant-Frequency with Vector Operation, to design 3-phase 3-wire parallel active power filter(PAPF).
该文提出了一种采用内环空间矢量电流调节器和外环同步坐标比例积分控制器相级联的三相四桥臂逆变器的控制方案，实现了对三相四桥臂逆变器的解耦控制。
This paper presents a decoupled control scheme for three?phase four?leg inverter through an inner current regulator based on space vector cascaded with an outer synchronous frame PI controller.
通过对能量方程进行体积分得到了三维流场中场协同理论的表达式。该式不仅含速度矢量与温度梯度矢量的点积项，还含有速度矢量与压力梯度矢量的点积项。
In this article the mathematical expression of field synergy theory for three dimensional flow with centrifugal force was derived by integrating the energy equation in the concerned volume.
通过对能量方程进行体积分得到了三维流场中场协同理论的表达式。该式不仅含速度矢量与温度梯度矢量的点积项，还含有速度矢量与压力梯度矢量的点积项。
In this article the mathematical expression of field synergy theory for three dimensional flow with centrifugal force was derived by integrating the energy equation in the concerned volume.
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