确定了当入射光场为椭圆高斯分布时，获得圆对称聚焦光斑的条件。
Conditions by which a circular symmetrical focussed spot can be obtained when the incident laser beam is an elliptical Gaussian profile are determined.
本文简单介绍了光场角动量的基本定义与概念，各类圆对称光束的角动量。
An introduction is given to the basic definition and conception of the angular momentums of the light field, and the angular momentums of a variety of cylindrical symmetric beams.
该法对任意的圆对称折射率剖面光纤计算传输常数和色散能够得到满意的结果。
Good result is achieved for the propagation constants and chromatic dispersion of arbitrary index profile single mode fiber.
计算结果指出，当轴棱锥的截面为圆对称的理想加工时，轴棱锥产生的光场分布为近似理想的零阶贝塞耳光。
Results show that if the cross-section of the axicon is ideally manufactured in circular symmetry, the field distribution behind the axicon is approximately an ideal Bessel beam.
讨论了单模光纤的偏振模色散PMD，包括PMD与单模光纤的几何尺寸及应力的非圆对称的关系；模间耦合的影响。
The PMD in singlemode fiber, including the relationships between PMD and the circular asymmetries of geometry and stress in fiber, the influence of mode coupling on PMD, are discussed.
圆的对称中心线就是直径。
有定义是基于形式，圆度，对称，形式的精简与否和重复。
There are definitions based on form, circularity, symmetry, economy of form, lack of economy of form, and repetition.
把波函数画成一个圆是有道理的，因为我们知道1s轨道是球对称的。
It makes sense to draw the wave function as a circle, because we do know that 1 s orbitals are spherically symmetric.
比方说，圆是中心对称的。
A circle, for example, is symmetrical under all rotations about the center of the circle.
用于表示圆或弧的中心，还可表示对称。
Use to indicate the centers of circles and arcs, and to represent symmetry.
在曲线处的内轨和外轨通常打磨成不对称的形状，目的是改善共形接触，增大内外车轮滚动圆的直径差，利于导向。
Curves generally are ground with asymmetric profiles that promote conformal contact in order to take advantage of the rolling radius difference and enhance steering.
本文对微机计算具有对称外轮廓曲线的圆简零件板金下料的展开尺寸进行了研究。提出了板金下料的通用程序，从而提高了下料尺寸的精度和效率。
In this research of Calculation of spread dimensions of a cylindrical unit possessed symmetrical outline, a general program with high precision and efficiency is advanced.
另外证实了(3,9 +2)或(9 + 2,3)分圆分形花样是一个对称性破缺的黄金分形。
Besides, it was demonstrated that the (3, 9 + 2) -circle and (9 + 2, 3) -circle fractal sets are golden ones with symmetry breaking.
传统方法一般用圆卷积和对称扩展方法来减弱边界扩展效应，但实验结果表明边界还存在失真。
Though the conventional symmetric extension and circular convolution are applied, the experiments show that the border distortion still exists in the reconstructed signal.
连杆式门闩系统用于控制圆拉杆或扁拉杆通过双对称，左右门均适用。
Rod-Latch system to control round or flat rods. RH and LH application through double symmetry.
利用拐点圆概念和对称连杆曲线的特性，导出一个简单的方程序。
A simple equation is presented via the theory of inflection circle and the properties of symmetric linkage curve.
而且我们要把蛋想成是，完全对称完全圆的。
And let's also make our egg perfectly symmetric and perfectly round.
求解了厚圆板在周边固支和简支条件下的对称与反对称的自由振动问题。
The symmetric and unti -symmetric free vibration problems of thick plate with the fixed and simple support edge conditions are solved.
诺兰不用风景和人物作为他的绘画主题，而是在一系列的关于同心圆或“靶心”、不对称的菱形条纹等形状的研究中崭露头角。
Instead of using landscapes or people as his subjects, Noland distinguished himself with a series of studies of concentric rings or bull 's-eyes, and asymmetrical diamonds stripes and other forms.
本文探讨了纤维增强复合材料正交对称铺设层合圆板的大挠度弯曲问题。
The large deflection problems of the symmetrically laminated cross-ply circular plates of fiber reinforced composites are investigated in this paper by using Galerkins procedure.
本文应用文提出的方法，研究受内点对称支承，在均布载荷作用下的弹性圆板的弯曲。
Using the method proposed by this paper, deals with bending of the uniformly loaded elastic circular plates with internal symmetrical point supports.
许多高功率微波源产生的微波模式都是圆波导轴对称模，因此研究轴对称模式的天线辐射技术具有重要意义。
It is important to study the antenna that can directly radiate cylindrically symmetric modes, which are generated by many high power microwave sources.
本文给出用对称联系法解圆分度误差时。
In measuring circular indexing error with symmetry-relation method, the author tries to operate with a microcomputer.
本文对极正交各向异性圆板在任意轴对称载荷和边界条件下的非线性弯曲问题进行了较为系统的研究。
This paper presents a systematical investigation of the nonlinear bending of polar orthotropic circular plates under arbitrarily axisymmetric loads and a variety of boundary conditions.
基于经典非线性板理论，研究了功能梯度圆板在均匀的径向压力作用下的轴对称过屈曲问题。
Based on the classical nonlinear plate theory, axisymmetric post-buckling behavior of a functionally graded circular plate under radial compression was investigated.
对周边为弹性支承边界条件下的功能梯度材料圆板轴对称弯曲问题进行了分析。
The paper presents an analysis of the axisymmetric bending of a functionally graded circular plate under elastically supported boundary condition.
单位圆上的拟交比同胚和拟对称函数，都是拟共形映照边界值的一种几何表征。
Quasihomographies and quasi-symmetric function on the unit circle are geometric characterizations of boundary value of quasi-conformal mapping.
应用贝塞尔函数理论，求得等厚度圆板和环板单元非对称自由振动传递矩阵的正确公式。
Applying the theory of Bessel function, the exact transfer matrix formulae of the asymmetric free vibration of the circular and annular plate elements with uniform thickness can be obtained.
所述的压电陶瓷圆片、空气用匹配层、灌注层、外壳和屏蔽层均为中心旋转对称结构。
The piezoceramic round disc, the matching layer for air, the perfusion layer, the casing and the shielding layer adopt a central rotational symmetry structure.
本文用这种方法求解了含有一个球形空腔的圆轴在两端受拉时的解答，表明了以此法分析求解空间轴对称问题的可能性。
Based on these formulas, axi-symmetric problems in elasticity can be solved by the complex function technique. As an example, a spherical cavity in ar…
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