结构的

Research shows turning round vibration is the main vibration shape of system of direct empty cold construction, should consider fan of; of vibration shape coupling many a little bit the structural vibration that syntonic drive causes is answered lesser, movement of fan low frequency is more than the influence of high frequency movement to the structure to structural influence.

探究表明扭转振动是直接空冷结构体系的主要振型，应该考虑振型耦合；风机多点谐振激励引起的结构振动响应较小，风机低频运转对结构的影响大于高频运转对结构的影响。

From the function needing of the building, the top needs small axis dimension which has to be assigned, the next function part hopes that there is as big as possible free space, it is heavy for network to take post, for satisfying building the requests of function, the structure must be by fixing up contrary to routine way, in order to realize that this kind fixes up, must set up a special floor between the underpart in structure forms are different, make it bear top the internal force of structure and transmit and give underpart structure to play structure change the floors of function reliable. It is called transfer floor.

从建筑功能的要求上讲，上部需要小开间的轴线布置，下部公用部分则希望有尽可能大的自由灵活空间，柱网要大，为了满足建筑功能的要求，结构必须以与常规方式相反进行布置，为了实现这种布置，就必须在结构形式不同的上下部之间设置一个特殊的楼层，使其能承受上部结构的各种内力，并将其可靠的传递给下部结构，这一能起结构转换作用的楼层，称为转换层。

This paper discusses the characteristics of the portal frame building constructer and studies optimization method to design them.The systematic analysis of the portal frames steel structural characteristics is done in section 2. And in section 3 and section 4, the structural optimization design is introduced based on the principles of finite element analysis and the technology of Object Oriented Programming in the software ANSYS.

本文系统地分析研究了门式刚架钢结构的特点，在此阶段，以有限元为基础，借助大型有限元ANSYS面向对象程序设计技术进行优化设计，研究基于功能强大的ANSYS作结构优化设计的问题：提出有效的设计变量、优化目标函数(以降低结构重量、充分发挥材料性能为目标)，编写APDL优化程序控制文件，在ANSYS程序上实现门式刚架结构优化设计。

Firstly, it described the definition, general reasons for formation, and the trend and conversional way of the dual economic structure by explaining the theory of dual economic structure, Secondly, it defined the distinctive features and main reasons for the formation of the dual economic structure through the demonstrational analysis of the dual economic structure.

其次，对我国二元经济结构的实证分析，阐述了我国二元经济结构形成的主要原因和突出特征，同时也分析了二元经济结构对我国经济社会发展的影响和转换二元经济结构需要解决的关键问题。

This is the first example of two-dimensional lanthanide MOFs with one dimensional water chains.2、Coordination polymer[Nd_2_3(H_2O)_2]·bpy·4H_2O(2)(bpdc=2, 2′-bipyridine-3,3′-dicarboxylate,bpy=4,4′-bipyridine)had been synthesized under hydrothermal conditions and its structures were determined by X-ray diffraction,and confirmed by IR and TG analysis.

该结构是在二维骨架的镧系配位聚合物中首次观察到的一维的水链结构。2、以Nd_2O_3，2，2′-联吡啶-3，3′-二羧酸和4，4′-联吡啶为原料，采用水热法合成了一个具有二维骨架结构的配位聚合物[Nd_2_3(H_2O)_2]bpy·4H_2O，通过IR、x射线单晶衍射分析和热重等手段对其结构进行了表征。

The comparative analysis of electronic expression profile of zfand5a gene from zebrafish, house mouse and pig that has high sequence homologies with zjp123 gene from P. olicaceus were carried out. Several conserved domains and motifs were discovered by the primary and secondary structure analyses. Zinc fingerlike tertiary struclure "C-Xasubscript (2-4-C-X11-C-X2-C" was shown by homology modeling.

电子表达谱分析分别对与ZFP123有较高同源性的斑马鱼、家鼠和猪的zfand5a(zfp123)基因各个组织表达情况进行了比较分析；一、二级结构分析发现其具有多个保守的基序和结构域；同源建模显示其具有一个&C-X下标(2-4-C-X11-C-X2-C&结构的锌指样三级结构。

Based on above study, a new type of two-layer pitch polisher, which bottom material of is gelatinate harder pitch and top material of is gelatinate-sol softer pitch, has been used in super-smooth polishing of reflector for laser-gyro.

根据沥青的结构及粘弹性特性，在超精密光学抛光中首创设计使用了双层结构的沥青抛光模，底层为凝胶结构的沥青，表层为软韧润滑性好溶—凝胶结构的沥青。

Since the natureal frequency of the structure can be obtained from any one of test points on it, ie. regardless of its position, the glueyness may be responded from the discrepancy of autospec-trum structure of the bicycle frame glued. For such a specified structure system,therefore, vibration monitoring which takes...

由于结构的固有频率可以从结构上任一试验点获取，即与试验点的具体位置无关，胶接车架自谱结构的差异可反映胶接质量的不同，因此，对于胶接自行车车架这一具体结构系统，以响应的自谱结构作为诊断特征的振动检测方法是简便可行的。

The main reason lies not only on power quantity, but more on power structure. This article based on some theories of industrial economics and lengthways analy...

本文从产业经济学的角度，以纵向分析为主，沿着现状、问题与对策的分析思路，对我国电力工业与国民经济的关联、电力投资结构、电源结构、电网结构与区域结构等进行了深入的分析，为进一步促进我国电力结构的调整、资源的优化配置和电力工业的改革与发展提出了一些对策和建议。

Five of their single crystals were obtained and their structures were determined by X-ray diffraction. By comparison, it was found that dithiocabamate complexes often formed an exactly planar MS4 unit, such as [Mo(R2dtc)2]; and also formed a special MS 5 unit, such as [Cu2(R2dtc)4], the copper atom lies in a distorted square-pyramidal environment.Four kinds of heteropoly acids were prepared and characterized; a series of solid superacid catalyst of supported heteropoly acid were prepared and characterized; regioselectivites of chlorobenzene mononitration with nitric acid with different heteropoly acid on different supports and reaction conditions have been investigated.

培养并解析了5个该类配合物的单晶结构，通过比较，发现二硫代氨基甲酸盐与过渡金属容易形成四配位结构，金属原子与4个硫原子共平面，比如二乙基二硫代氨基甲酸钼；也能形成比较特殊的五配位结构，比如二乙基二硫代氨基甲酸双核铜，Cu原子与5个S原子相连，处于一个变形的四方锥结构的配位环境。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了