查询词典 main beam

It has been found that the existance of metalic or non-metalic oxides in the coating and the roughness of the coating on the metal surface are the main factors influencing the absorptivity of laser beam.

研究发现，金属或非金属氧化物的存在以及金属表面涂层的粗糙度是提高激光束能量吸收率的主要影响因素。

Based on the method of multi-objective fuzzy optimization and the overhead traveling crane design, a mathematical model of fuzzy optimization for main box beam section is established. A fuzzy goal anthology is constructed. The fuzziness of multi-objective function and constraints is defined. The transformation of the fuzzy constraints set to normal constraints set in real number domain is realized by applying optimal level cut set method. The optimal solution and optimal constraint value of sub-objective function in the feasible field are found using the genetic algorithms.

应用多目标模糊优化方法，以工程设计中桥式起重机箱形主梁设计为实例，建立了桥式起重机箱形主梁多目标模糊优化设计的数学模型，构造了模糊目标集，确定了多目标函数的模糊性和约束的模糊性，并应用最优水平截集法实现了模糊约束到实数论域上的集合转换，从而用遗传算法寻求到子目标函数在可行域空间的最优解和约束最优值。

Oversize main tubes and increased beam allow for greater load bearing and stability.

特大型的主气舱和加长的横梁的船还可以携带更多的重量，保持更稳定的姿态。

According to the characteristic that the definition point of the Q matrix of wave front is always located on the extremum point on the axis of the beam, a three-dimensional formula for the rectificative factor of phase in complex ray paraxial approximation is proposed, which calculates the rectificative factor of phase directly without considering the calculation of the main directions and curvatures and the rotation of the coordinates, thus simplifying the paraxial approximation calculation by the complex ray expansion method.

根据波前Q矩阵的定义点总位于波束轴上极值点的特点，提出了三维复射线近轴近似相位校正因子计算公式。该公式不用考虑主方向和主曲率的计算和坐标旋转，直接计算相位校正因子，从而简化了复射线展开法的近轴近似计算。

Each entire beam path static wavefront of technical integration experiment line was obtained by the wavefront measurement system in the target chamber. The result was transited to wavefront sensor in the main amplifier diagnostic package.

利用置于神光Ⅲ原型装置靶室波前测量系统，获得8束激光全光路静态像差，将测量结果分别过渡到各路主放参数诊断包内的波前传感器。

According to the invention, the damping device consists of a plurality of separate individual dampers which are arranged with their elastomer and intermediate layers in the direction of the main bending plane of the support beam.

据发明，减振装置构成的多元化的单独的个人阻尼器，其中安排与他们的弹性体和中间层的方向，主要弯曲平面的支持束。

All main structure beams are FB beam s on Zhaodong offshore oil area OAD large- scale drill platform.

完全按照美国标准设计、建造的赵东区块ODA大型钻井平台的主结构梁均为FB梁。

Company's main products are: various models of corrugated board machine, C / Z-beam PURLIN of the molding equipment, steel floor plates for molding equipment, steel floor plates for the machine, O-Vol door molding equipment and related support equipment.

公司主要产品有：各种型号瓦楞板成型机、C/Z型钢檩条成型设备、楼面钢承板成型设备、楼面钢承板成型机、澳式卷门成型设备及其相关配套设备等。

Existing literature on the inquiry,collation and analysis,this article had the following major tasks:1st,finite element simulation of the current analytical methods are summarized,and system introduction finite element software ADINA and ANSYS applied in the reinforced concrete built-up section.2nd,system introduction reinforced concrete component material performance as well as reinforced concrete nonlinear analysis main mathematical model. 3rd,the use of ANSYS and ADINA software simply supported beam simulation were compared.4th,uses the ANSYS analysis software,conducted 7 radical center bearing reinforcing steel-side steel pipe concrete short stump simulation test research,the research had indicated the reinforcing steel the existence strengthened the pillar ductility greatly.5th,based on ANSYS,has conducted 2 radical center bearing reinforcing steel-side steel pipe concrete member in bending simulation test research.

通过对现有文献的查询、整理及分析，本文进行了以下主要工作：1、对目前有限元模拟分析方法进行了总结，并系统的介绍了有限元软件ADINA和ANSYS在钢筋混凝土组合结构中应用。2、系统的介绍了钢筋混凝土构件的材料性能以及钢筋混凝土非线性分析的主要数学模型。3、利用ANSYS和ADINA软件对简支梁进行了对比模拟分析。4、利用ANSYS分析软件，进行了7根轴心受压钢骨-方钢管混凝土短柱的模拟试验研究，研究表明钢骨的存在大大加强了柱子的延性。5、利用ANSYS分析软件，进行了2根轴心受压钢骨-方钢管混凝土受弯构件的模拟试验研究。

The main task of this paper is to investigate the growth of high quality single crystalline Zinc Oxide thin film on sapphire (0001;α-Al_2O_3) substrate via radio frequency plasma-assisted molecular beam epitaxy. The work will lay a foundation for application of novel semiconductor material, ZnO, in the field of photoelectronic devices.

本论文的主要任务是研究在蓝宝石(0001)衬底上利用射频等离子体辅助分子束外延系统生长出高质量的氧化锌单晶外延薄膜，为ZnO这一新颖的半导体材料在光电子器件方面得到应用打下基础。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐