查询词典 beam-focusing

According to the current high real time peculiarity and high precision demands of beacon beam processing subsystem of space optical communication and the requirements of our project, the method that uses digital signal processor to solve the image position error signal extraction of beacon beam is proposed in this dissertation. It have the following advantages: the small system volume, the slight weight, the small power, the high real time peculiarity and the high precision and so on.

根据目前空间光通信对信标光处理子系统提出的高实时性和高精度性的要求以及课题的需要，本论文提出用数字信号处理芯片DSP来解决空间光通信中信标光的像面位置误差信号提取的问题，其优点就是系统体积小、重量轻、功耗低、实时性高、精度高等。

Studied internal force and transform of four construction stages, make sure the general precamber of the main beam,the side beam and three arches.

分别研究了四个施工阶段的结构内力和变形，确定了主梁、边梁和三片拱的一般预拱度。

Owning to the interaction of the slab on the side of the transfer beam, the secondary internal force of frame-supported beam is more less than the predominant one.

由于转换梁两侧的楼板对转换梁的约束作用，框支梁次方向的内力远小于主方向的内力。

In terms of micro, you will be more focused on not 'clumping' your units together, rather than any actual dodging. The beam fires at one time and will not be a moving beam from one side to another.

你的微操会集中于分开你拥挤的单位；因为它的射线现在是一次性发射而不再是之前的扫射，操作单位躲闪现在意义不大。

In China, there is no research in the field previously. This thesis supported by the Ministry Advanced Research Foundation of China, make a basic study of the instrument. Its achievements read as follows:(1) A new analytic method based on the concept of an equivalent volume force presented in this thesis, which solve the problem of piezoelectric beam, is simple, clear and reliable. By means of it, the design parameters for QRS have been calculated and analyzed serially, i. e., optimum electrode configurations are chosen, the side ratio of beam is determined, and the formula of electrode location efficiency is derived.

在我国这方面的研究尚属空白，本文在兵器部预研基金项目的支持下，对这种器件进行了基础性研究，从而填补了国内空白，具体包括如下内容：(1)提出了等效体力概念，以此为基础建立了一种分析压电振梁问题的新方法——等效体力分析法，该方法物理图象清晰、计算简明、结果可靠，它可以对QRS的设计参数进行系统的理论分析。

The operation of SAP2000 is simple , The result of calculation is more exact than other finite element software. So the result of model is exact. Moreover, In the middle of the system of balcony with side beam ,side beam and shoulder beams a crossed.

同时，SAP2000与其他有限元软件相比，建模简单，易于上手，所以采用SAP2000分析软件进行本论文的研究，是一种更为有效、简单、实用的结构研究、设计分析软件，用它进行结构分析是值得信耐的。

This was due to the heat effect of welding to connect the side plates and the beam flanges, which caused brittle tear of beam flanges in the heat effect zone outside of reinforced part.

主要原因是侧板与梁翼缘的对接焊缝的影响使得加强区外焊接热影响区母材变脆而发生脆性撕裂。

In the design and improvement section, took the three methods as follow: changed the section form of the beam, amended the fixing method of both side of the beam and design the dynamic vibration absorber according to the vibration theory to raise the working speed of the computerized embroidery machine.

改进设计部分，根据振动理论和建立有限元模型时的一些结论，通过改变横梁截面形状，修改横梁两端的固定方式，设计动力吸振器三个方面来实现减振，以达到提高电脑刺绣机工作转速的目的。

Basically, a composite concrete deck consists of a concrete top slab, flanked on each side by concrete main beam s, and a concrete middle beam .

组合混凝土梁的基本构成是顶部为混凝土平面，两侧为混凝土主梁，中间为混凝土中梁。

In chapter three, the passive vibration control of a smart cantilever beam with piezoelectric shunt damping system is studied theoretically. In this chapter, the mechanical impedance of piezoelectric shunt damping system is analyzed, and the parameters of the RLC piezoelectric shunt circuit are optimized via transfer function of the piezoelectric shunt damped beam in order to optimize the vibration damping effect.

第三章。研究了利用压电分流阻尼系统进行压电智能悬臂梁被动振动控制的方法，分析了压电分流阻尼系统的机械阻抗，并通过传递函数方法对RLC串联压电分流谐振电路元件的参数进行了优化，以使压电分流阻尼系统的阻尼效果达到最优。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。