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In some cities, and even the house top-knot as a condition of real estate pre-sale, such as Shanghai, there are provisions of the following seven of the housing project should be complete basic engineering and construction to the main cap structure; eight or more of the housing project housing project should be complete basic engineering and construction to more than two thirds of the main structure.

在一些城市,甚至在众议院顶端结的一个条件,房地产预售,如上海,有规定的下列七项住房项目应当完成基础工程和建设的主要帽结构; 8个或更多(包括8 )的住房项目住房项目应当完成基础工程和建筑,以三分之二以上的主要结构(不少于7)。

This paper is mainly about the research of the structure and principle of the aerostatic bearings, and gives a method of engineering calculation; two calculating programs of bearing load, stiffness and gas flow are written in C language, then detailed analysis is made according to the results.

本论文讲述了气体轴承的工作原理和结构,给出了气体轴承工程计算的方法;用C语言编程进行工程计算并分析了各几何参数和气体参数对性能参数的影响,根据分析和计算结果确定了气浮轴承的参数;利用三维造型软件Pro/ENGINEER进行了气浮台整体的结构设计。

The joint components can be determined directly based on the axile forces and diameters of each bars given by the finite element analysis, and reduplicative checking computations can be avoided by the method.

同时 ,网格结构节点数量众多,节点用钢量占杆件用钢量的 1 /5~ 1 /4,合理设计节点对结构安全度、制作安装、工程进度、用钢量指标以及工程造价都有直接影响。

The result of FLAC^3D numerical modeling indicates that the tension stress distributes along bedding weak layer and in cataclastic rock near slope surface; and potential sliding plane cuts through gradually.

:通过对汤屯高速公路顺层边坡现场工程地质条件的系统调查,首先对边坡的岩体结构类型及其成因机制、结构面与坡面组合特征进行细致研究,在此基础上通过FLAC^3D数值模拟,结合工程地质条件分析,对其变形破坏机制进行深入探讨。

The inperfect crystal structure and its analysis for materials, is an elective course for the master graduate student, which include the crystallology principle, development of crystal diffraction, crystal determination and computer simulation of new phase, analysis of solid solution and superstructure, correction of crystal structure and bondvalent theory, analysis of inperfect crystal structure, analysis of amorphous structure and so on.

材料不完整晶体结构及其分析方法,为材料科学及工程等专业硕士研究生的选修课,内容包括晶体学基础、晶体衍射技术最新进展、新相晶体结构测定与数值模拟、固溶体与超结构分析、晶体结构修正与价键理论、不完整晶体结构分析、非晶结构分析等。

Since Watson and Crick have brought forward the model of DNA helix structure and explain about it's reproduce mechanism in molecule level, research work concerning DNA has been continuously lucubrated. However, whether translating inheritance information and rebuilding DNA molecule via menstruating DNA sequence, or to date the most compelling gene project, chromosome protract et. al, there all need a sort of molecule scissors cleaving DNA, DNA cleavage reagent. At present, tool enzyme of cleaving DNA is mostly DNA restriction enzymes founded in 70 years, which only cleave DNA at specific 4-8 base pair sequences that are usually palindromic, so this restricts the at very fast speed developing of gene technology at certain extent.

自从Watson和Crick提出DNA的双螺旋结构并对其复制机制在分子水平上进行解释后,使得对DNA的研究不断深入,但无论是通过测定DNA的序列来破译遗传信息、改造DNA分子,还是目前最令人关注的基因工程、染色体绘制等,都需要一种断裂DNA分子的&剪刀&——DNA断裂试剂,目前断裂DNA的工具酶主要是上个世纪70年代发现的DNA限制性内切酶,但所知的Ⅱ型限制性内切酶的DNA序列识别长度较短(约为4~8个碱基对),而且一般要求回文结构,这就给飞速发展的基因工程技术带来一定的限制。

At last, natural frequencies of practical pre-stressed composite space truss are tested with pulsatory method on construction site and its damping ratio is calculated, which gives another important data for engineering design. In addition, through the model experiment of pre-stressed rectangular square pyramid composite space truss, the correctness of characteristics of internal force and the feasibility of tension recovery method are proved.

最后,在工程施工现场用脉动法测试自振频率,并借助于振动衰减曲线和半功率点法计算出预应力组合网架——钢与混凝土的混合结构体系——的阻尼比,此又为工程设计提供了一理论依据;另外,通过正放四角锥预应力组合网架的模型试验,验证了结构内力分布特点的正确性以及张力松弛法的可行性。

Along with rapid development of technology.all sorts of engineering structure became more and more gigantic; for the sake of their credibility and good function, motive characteristic problem of the structure become an important topic in the engineering technique realmwhich need an earnest research and settlementln the windproof and quakeproof design of the structure and the bridge,the natural frequency of the structure vibration is a very important parameter.

摘要随着科学技术的飞速发展,各种工程结构愈加巨型化,为了保证它们的可靠性和良好的性能,结构的动力特性问题越来越成为工程技术领域里需要认真研究和解决的重要课题。

The arrangement and structural form of underground caverns are determined by the distribution and engineering characteristics of control discontinuities.

控制性结构面的展布和工程特性往往决定了地下洞室的布置和工程结构形式。

The superstructure uses the standard drawing, the substructure has used the gravity T-shape abutment and the rectangular buttress, in the design carries on the size to the abutment and the bridge pier to draw up, simultaneously satisfies the design the principle, the abutment uses 9.3m, in satisfies the structure and under the operation requirements premise, the abutment uses 9.3m to be long, because the geological condition decided, the pillar body uses 12m to be high, the open excavation foundation, the process load computation and the load combination, has carried on the bridge abutment and the pillar bottom section stress separately to the abutment and the bridge pier examines calculated, examines calculated the result conforms to the standard requirement, the bridge span uses the straight line build, and established this bridge construction organization plan, including the engineering project characteristic, the construction plan, the job practice, the bridge building construction technology, the measure has drawn up the top cap and the tray structure and matches the muscle chart, finally has drawn up Shui Xigou the bridge overall and the horizontal plan.

上部结构采用标准图,下部结构采用了重力式T 形桥台和矩形桥墩,设计中对桥台和桥墩进行了尺寸拟定,在满足构造和使用要求的前提下,桥台采用9.3m长,由于地质条件决定,墩身采用12m高,明挖基础,经过荷载计算和荷载组合,对桥台和桥墩分别进行了台底和墩底截面应力的检算,检算结果符合规范要求,桥跨采用直线布设,并且编制了该桥的施工组织设计,其中有工程项目的特征、施工方案、施工方法、桥梁工程施工技术,措施绘制了顶帽及托盘构造及配筋图,最后绘制了水溪沟大桥的总体及平面图。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。