查询词典 spring beam

It is shown that in the small distance region of the bar-LD the intensity distribution of the bar-LD is constructed by separate beam spots emitted from each emitter. As the distance of the observation point from the bar-LD increases, the beam spots of the emitters begin to overlap, and even to form a flattop distribution in a large distance region.

结果表明，在距发光面较近处，各emitter辐射的光斑呈分离状；随着距离增加，各光斑开始交叠，甚至出现平顶；当距离足够远，bar型半导体激光器的远场光斑与单个emitter的辐射光斑几乎没有差异。

The assembly method of the invention has the main principles that a semiconductor laser, an optical coupled apparatus and a fiber head are orderly arranged, and the optical axes of the semiconductor laser, the optical coupled apparatus and the fiber head are arranged in a same straight line; the focal plane of an output beam which is focused on the fiber head is changed through utilizing and adjusting an adjusting device which can cause a beam to deviate; the sensitivity of the assembly adjustment of the adjusting device in the course of fixing is reduced.

本发明的方法的主要原理是将半导体激光器、光学耦合器件、光纤头依次排列，并使它们光轴在同一直线上，然后通过利用一使光束发生偏移的调节器件，通过调节该调节改变聚焦于光纤头的输出光束的焦平面，降低调节器件装配调节的固定时的敏感性。

The radius of the focal point will gradually rise and the amplitude of the beam wave will reduce as the beam transmits in the channel.

选择适当的系统参数，可调节束聚焦点位置和聚焦点半径的大小，实现电子束的长距传输并且减少电子束的耗散。

Euler-Bernoulli beam model was employed in forced vibration analysis of strongly coupled beam system by using finite element method.

在反问题中，利用基于时域响应的有限元模型修正法进行了强耦合梁系统局部损伤的识别，讨论了人工测量噪声对损伤识别结果的影响。

Based on the construction features of the Upper Beam of Large Open-die Forging Hydraulic Press,a finite element model has been established by using large-scale finite element analysis software I-DEAS,and the structural stress and displacement of the upper beam under all sorts of loads have been analyzed.

根据某大型自由锻造油压机上横梁的结构特点，利用大型通用有限元分析软件I-DEAS建立有限元模型，并对上横梁进行了静力学的有限元分析计算，研究了在满负荷工作状态下上横梁的结构应力以及位移情况。

The analytical solution of the beam response was obtained by applying the Fourier integral transformation and the residue theorem, followed by a comprehensive parametric study to investigate the effects of the subsoil depth, the material stiffness and the load speed on the beam response.

运用Fourier积分变换和留数定理对动力控制方程进行求解，得到了平面应变条件下覆盖于基岩的均质弹性层和非均质弹性层地基上梁的动力响应解析解，并进一步分析了荷载运动速度、地基厚度及地基非均质性等对梁变形的影响规律。

This procedure used to simulate, Fresnel and Fraunhofer diffraction beam-beam diffraction contrast.

详细说明：此程序用于模拟，菲涅尔衍射光束和夫朗和费衍射光束的对比。

Armament remained unchanged from the fighter bomber, but FuG 220 Lichtenstein SN-2 or Fug 217J Neptune/FuG 218 Neptun V airborne intercept radar was to have been incorporated, the aerials being located forward of the wing (lateral beam port and vertical beam starboard).

原有战斗轰炸机的装备全部保留不变，但是加装了FuG 217J 海王星空中拦截雷达，天线安置在机翼前沿。这种情况下就需要另一名机组人员来操纵雷达装置，他坐在驾驶舱后部。

This paper provides an overview of status about laser beam shaping at home and abroad. The theory of beam shaping transformation, including geometric optics and matrix optics, is presented.

本文综述了国内外对于半导体激光束整形技术的研究现状，阐述了研究光束整形变换的理论方法，主要包括几何光学、矩阵光学。

The first beam-beam collision event at RHIC at collision energy of square root s_NN = 60 GeV was recorded by STAR.

它可以在从入射能量到最高能量的一个很大的能量范围内运行。

Go to your desktop and right click in a blank space.

请到您的桌面，然后右击一个空白。

Tara appears in Buddhism, Jainism, and particularly, Tibetan Lamaism, as a complex array of manifestations: goddess of ascetism and mysticism, mother creator, protectress of all humans as they cross the sea of life.

度母出现在佛教，耆那教里面，尤其是西藏的喇嘛教，作为一系列的陈列阵容；神秘的女神，创世之母，人类横过生命之海洋的女性保护者。