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The methods of plane arrangement and checking of bowl-button steel scaffold were demonstrated in detail based on the engineering construction of cast-in-place Continuous beam in Houyan Cross-bridge of Shenda Highway. In addition, the methods of communicating the length of U-tray and adjusting the gradient have been given. It is pointed out that original pod can adjust the greater longitudinal or tranverse grade in the box-girder construction and welding-steel-bar can reduce partial compression.
通过后盐立交桥连续箱梁施工这一工程实例,详细论述了碗扣式钢管脚支架的平面布置方法及受力验算方法,提出了碗扣式钢管脚支架的U托旋出长度的计算方法及纵横坡的调整方法,并指出采用找零立杆的方法可以解决较大纵横坡度箱梁的施工问题;采用贴焊钢筋的方法可以解决U托偏心受压的间题。
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High load high temperature resistant, good performance, and braking stability, mud in winter and bad conditions, the disc brake driving drum brake easier than in a relatively short period of time to stop the car Can collapse in vehicle principls shrinkage occurs when the frontal impact crushing forward, to ensure the shrinkage crew chest from harm CAE simulation technology for application of the original design, the change process, CAE analysis method and combining with engineering design, analysis and design, CAE and the integration of CAD most of the vehicle in the design phase problems can be resolved through simulation, can be in concept design phase is accurately forecast and control components and vehicle performance and reliability, thus in the development initial can make the future product performance and structure index guaranteed.
高负载时耐高温性能好,制动效果稳定,而且不怕泥水侵袭,在冬季和恶劣路况下行车,盘式制动比鼓式制动更容易在较短的时间内令车停下可溃缩式转向柱会在车辆发生正面碰撞的时候向前溃缩,以保证乘员胸部免受伤害 CAE仿真技术进行的全面应用,改变了原来的设计方法和流程,CAE分析和工程设计紧密结合,实现了分析与设计同步、CAE与CAD的一体化使车辆的大多数问题都可以在设计阶段通过仿真得到解决,可以在概念设计阶段就精确地预测和控制零部件乃至整车的性能和结构可靠性,从而在开发初期就能使未来产品性能和结构指标得到保证。
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Until now, however, China's animation books, the widely popular mainly imported goods from Japan, or the footsteps of imitation goods, the Chinese mainland has become in effect a Japanese cartoon original plants and dumping ground, not only the conduct of business in the economy serious an uneven relationship, but also in terms of cultural influence - in particular, the values of the impact on young people to generate a worrying consequences.
然而直到目前,中国动漫读物中,广为流行的主要还是来自日本的舶来品或是其亦步亦趋的模仿品,中国大陆已经变相成为日本卡通原创的加工厂和倾销地,这不仅在经济商业行为中产生严重的不对等关系,更在文化的影响——特别是对青少年价值观的影响上产生出令人担忧的后果。
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Modeling and stability analysis problem of linear switched system are emphasized in this part and main results include:(1) Through investigation in the projection of 〓 on x, where x denotes continuous state vector, a series of sufficient conditions for stability, asymptotic stability and unstability of linear switched system's equilibrium in the sense of Lyapunov are achieved. And also, a sufficient and necessary condition for state bounded stability of linear switched system is received.(2) For a class of periodical linear switched system whose switching sets are a group of ordinal lines starting from the original point, it's proved that state bounded stability can be defined by the running characteristic in a single period (3) Based on linear switched system, the concept of linear switched system network is put forward. Linear switched system network is a complex network interconnected by many linear switched systems.
这部分着重研究线性切换系统的建模与稳定性分析问题,主要成果包括:(1)通过考察〓在x上的投影,得到线性切换系统的平衡点在Lyapunov意义下稳定、渐近稳定及不稳定的一系列充分条件,并得到了线性切换系统状态有界稳定的一个充要条件;(2)证明了对于一类切换集为从原点出发的一组射线的周期线性切换系统,其状态有界稳定可根据一个周期内的系统运行特性来判定;(3)在线性切换系统的基础上提出了线性切换系统网络的概念,线性切换系统网络是由多个线性切换系统交互作用而形成的复杂网络。
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Only with such characteristics, the movement equations can be expressed as matrices, and the idea of transforming the movement equations to the simplest form through a nonlinear transformation can be realized;(2) The form of Zi =Yi + YTH2i Y + Y7H3i Y(2)+ Y(2)T H4i Y(2)+ YTH5i Y(3) is adhibited in the nonlinear transformation, so that the multivalued problem caused by the nonlinear transformation is avoided, and the higher order transformation can be taken next;(3) The fourth order nonlinear transformation matrices H21,H31,H41 and H51 are derived, by which the original movement equations of electric power system is transformed to Jodan form in Z space;(4) By use of the fourth order nonlinear transformation, the approximate expression of the stability boundary is obtained, in Z space it is Z1= 0,in Y space it is Y1 + YTH21 Y + YTH31 Y(2)-i- Y(2) TH41 Y(2)+YTH51 Y(3)= 0;(5) The criterion used in this paper to judge whether the system critical unstable is simple and quick;(6) The method used in this paper is a direct method, and no need to construct an energy function.
正是由 于电力系统的运动方程具有这样的特性,才能写成矩阵的形式,通过非线性变换将电力系统的运动方程变换为最简单的线性形式的思想才能得以实现;(2)将通常运用于电力系统暂态稳定性分析的Normal Form变换的形式由 Yi= Zi+ ZTh2riZ变形为 Zi= Yi+YTH2iY+YTH3iY(2)+Y(2)TH4iY(2)+YTH5iY(3),从而使得在对持续故障轨线实施同样的非线性变换以确定临界切除时间时,避免了非线性变换带来的多值性的问题,而只有在没有多值性问题的困扰下,才能采用较高阶的变换:(3)推导出了将原始电力系统系统的运动方程变换到Z空间的约当形式的非线性变换矩阵H21、H31、H41、HS1:(4)在运用四阶了「线性变换的情况下,给出了受扰动后系统的稳定边界的近似的解析表达,在Z空间为Z1=0,在y空间为: Y1+YTH21Y+YTH31Y(2)+Y(2)TH41Y(2)+YTH51Y(3)=0 (5)确定临界失稳的判据简单、快捷:对于一个复杂的电力系统,其稳定边界是相当复杂的一个高维曲面,即便是已知系统稳定边界的解析表达,要求出系统持续故障轨线何时与这一高维曲面相交,在数学上几乎是不可能实现的。
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Early in 1893, a mechanical watch manufacturer Ashler Mate in a town, which was the industrial town of north-west part of Switzerland, invented and made the original form of 'Wenger'. In 1900, Theo Wenger and Henri Sandoz, the president of Dawanashi, cooperated to register Wenger Co. and move its headquarter to another town.
早在1893年,瑞士西北部工业重镇尤拉地区的克特泰勒小镇上一位机械手表制造商阿希勒·梅特研制并生产了&威戈&组合刀具的雏形。1900年,在迪欧·威戈及塔瓦纳斯手表公司总裁亨利·桑多斯携手合作下,威戈公司正式注册成立并将总部迁至德雷蒙特市。
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Olympic culture has been communicated for a period of nearly 100 years. As the key of Olympic culture,the Olympic spirits has very important influence, especially in the time of Beijing hosting 2008 Olympic Games, communicating Olympic spirits with the construction of physical education on culture in campus has become the need of the new time. Physical education culture in the campus is an important part of the culture in campus. It is the briskest and the most original culture in the campus and exerts a subtle influence on the people in the campus.
奥林匹克文化在我国高校中的传播已经有近100年的历史,而奥林匹克精神作为奥林匹克文化的核心,具有丰富的内涵和良好的教育价值,在北京即将举办2008年奥运会之际,在我国高校中更广泛地弘扬与传播奥林匹克精神已成为时代发展的需求;高校校园体育文化是高校校园文化的重要组成部分,是高校师生接触最为广泛,最有活力的一种文化,对校园人有着多方面的重要影响,如何将两者相结合以实现良性的互动,有着重要的研究价值。
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Mention should also be made of pedestals found in their original position in the portico of the abbey. They are decorated with alternating flutings and cablings similar to those on pedestals in St.
修道院的门柱在它们原来的位置还发现了柱脚,它们的装饰以条纹和卷绳状雕饰相互交替,这些柱脚的装饰相似於耶路撒冷圣安妮修道院
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These new types have replaced the original CPV type 2 worldwide, and CPV type 2b predominates overwhelmingly relative to CPV type 2a and is endemic in most populations of domestic canids in China.
通过单克隆抗体识别、限制性酶切及PCR等方法进行的流行病学调研表明:自从最早期的CPV-2型细小病毒出现以来,CPV已演化出新抗原型,即CPV-2a与CPV-2b型。
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The results show that space finite analysis results are close to test ones, bottom chords suffer axial force and large in-plane bending, and the max stress is nearby each middle internode. The max stress of node crossbeams occurs in No.2 bottom flange, and that of internode crossbeams happens in ones lying in the middle of every internode. The concrete slab is in tension at the longitudinal direction, and also suffers bent at vertical loads. The degree of completely-composite model taking part in the combined actions is about 55%, while that of semi-composite model is 42%-43%. The combination of concrete slab and bottom chord increases the degree of floor system taking part in the combined actions, lightens the burden of bottom chord, and reduces out-of-plane bending of node crossbeams especially the ones near bridgehead. Stress and displacement of main truss can be evaluated by a equivalent plane rigid frame in preliminary design, and effective stiffness of bottom chords are composed of original ones and concrete slab, and the concentrated load from deck can be translated into uniform load.
研究结果表明:空间有限元分析结果与试验结果较吻合;下弦杆受到轴向拉力和较大的面内弯矩作用,各节间最大应力出现在节间中点附近;节点横梁最大应力发生在横梁2的下翼缘,节间横梁最大应力发生在位于端节间中部的小横梁上;混凝土板顺桥向整体受拉,并在竖向集中荷载作用下产生弯曲变形;全结合模型大部分节间内的桥面板参与主桁共同作用的程度为55%左右,半结合模型桥面板的参与程度为42%~43%;桥面板与下弦杆结合能够增加桥面板的参与程度,减轻下弦杆荷载,减少节点横梁尤其是靠近桥头横梁的面外弯曲;对桥梁进行初步设计时,主桁杆件的位移与内力可按照1个等效的平面刚架计算,下弦杆的等效刚度由原下弦杆截面和混凝土桥面板截面组合而成,桥面荷载可转化为均布荷载施加。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。