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In this paper,a kind of flexible cantilever beam electromagnetic optical switch which is used in the wave length channel selection system was designed and fabricated. It is manufactured by MOEMS technology and composed of a plane circular coil in flexible polyimide cantilever beam, cylindrical permanent magnet,substrate and reflector prism with two reflecting surfaces.

设计并制作了一种用于波长信道选择系统的新型柔性悬臂梁电磁驱动光开关，该光开关采用MOEMS技术制作，由带有平面螺旋形线圈的聚酰亚胺悬臂梁、圆柱形永磁体、基座以及双面反射棱镜组成。

In this paper, according to the basic principle of light– ray propagation, the elliptic cylinder lenses have been designed and used to collimate the semiconductor laser beam. With the computer simulation by use of Matlab, the numerical results are given. The numerical results indicate that the divergence angle of the collimating beam could be as high as 0.1mrad.

在本文中，针对现在对半导体激光器准直的要求作者基于利用柱透镜对半导体激光器光束准直的理论分析，设计了利用椭圆面柱透镜对半导体激光器进行光束准直的方案，对半导体激光器发出的光束经过椭圆面柱透镜的光路进行计算，并且利用Matlab对方程进行求解及计算机模拟得到最终结果。

By utlizing the division of light beam instead of single-point collimate and scan, the method acquire multiple-beam confocal measurement synchronously.

目前，三维共焦测量技术的研究正朝着如何提高空间分辨率和信噪比、扩大测量范围、增加扫描及数据采集的速度、实现在线监测等方向发展。

It is shown that beams of reinforced average strain distributing accord with flat section assume; The method of strengthening intension of concrete structure with reinforced materials is a feasible way. The strength of beam can be increased with the number of reinforcement materials be added; The strength of beam is affected by percentage of flexural reinforcement and the compound proportion and fashion of reinforcement materials and the number of reinforcement materials; The capability of bend and stretch and price of inner hybrid fiber is better than sole fiber and exterior hybrid fiber.

通过分析可知：加固后的梁，其平均应变的分布符合平截面假定；使用加固材料来提高混凝土受弯构件承载力的补强加固方法是有效的；构件受弯承载力随加固材料用量的增加而提高；纵筋配筋率、加固材料混杂比例及混杂方式、加固材料用量均对受弯承载力有一定的影响；层内混杂纤维的抗弯性能、延伸性能以及经济性均优于单一纤维和层间混杂纤维。

One slightly concave cylindrical lens combination is used to change one laser beam into small sector in small angle, and one reflector projects the laser beam to prism driven by a motor to rotate in high speed to produce one reciprocating and scanning small sector plane.

采用微凹柱面透镜组将激光光源发射的一束激光拉成具有微小夹角的小扇面，利用反射镜将此激光束透射到由电机驱动的高速旋转多面棱体上，使激光束产生一个小扇形往复激光扫描光平面。

By using the transfer matrix of the beam propagation,the movement of the low-order nonlinear ghost image s was calculated when high-power Gaussian laser beam passes through the single convexo-convex lens,the single concavo-concave lens and the 4F system and then the movable rules were analyzed.

采用矩阵光学方法，计算了高功率高斯光束通过单个凸透镜、单个凹透镜及 4F系统时低阶非线性鬼像的移动，并分析了其移动规

The outstanding stability of wavelength, excellent concentricity of the beam,and fairly longer life span(5-10 years),enhance the quality of its light beam on the base of its traditional design.

其卓越的波长稳定性、优良的光束集中特性及较长的使用寿命（5-10年），使它在原有传统设计的基础上具有更好的光束质量。

The result indicated:Without considering the influence of atmospheric turbulence,the visibility is higher,the beam intensity attenuation is smaller;Under the condition that only considered the atmospheric turbulence influence,wave length of transmission laser and refractive index of atmospheric structure constant have an important influence on beam intensity distribution.

结果表明：在不考虑大气湍流影响的条件下，能见度越高，光强衰减越小；在只考虑大气湍流影响的条件下，传输激光的波长，大气折射率结构常数，对激光远场光强分布具有重要影响。

The phase-shifts caused by reflection and transmission of the beam splitter were investigated by its eigen-martix.The general relationship between these phase-shifts of two splitted beams used for coherent combining was obtained,then the fact that when constructive interference occurs in one side of the beam splitter and the destructive interference has to occur in the other side was explained in the point of phase-shift.

利用分束器的特征矩阵研究了分束时产生的反射与透射相移，得到了两束相干光经过分束器分束后进行相干叠加时相移满足的普适关系，从相移的角度解释了分束器一侧发生相长干涉时另一侧必然发生相消干涉这一现象。

Ansys-finite element analysis is used to figure out the capability of steel corbel reinforcing the negative bending moment part of continuous beam or cantilever beam in reducing stress peak.

本文采用有限元计算手段分析了在悬臂粱或连续梁负弯矩梁底粘锚钢支托牛腿加固对应力峰值的削减作用，并予以实例证

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。