压克力的

Assisting with the main requirement to nanoindentation test, the mechanism of precision loading device was designed and analyzed, and the scheme to realize nanoindentation test of diamond indenter under the help of hybrid process of piezoelectric stack and flexure hinges was established. The force signal of nanoindentation was measured via flexure hinge based on Hooke's law.

结合纳米压痕测试的基本要求，对精密加载装置进行了结构设计分析，建立了以压电叠堆推动柔性铰链推进单晶金刚石工具头实现压痕测试的方案，依据胡克定律利用柔性铰链敏感单元实现对压入力信号的检测。

While the former Posh Spice edged out English journalist Nigella Lawson for the top spot on the mothering countdown, her husband came in just ahead of Hollywood actor Brad Pitt for his fathering duties, the report said.

报道说，维多利亚击败英国星级女厨师尼格拉·劳森跻身"美味妈咪"排行榜榜首，而她的丈夫贝克汉姆力压好莱坞大腕布拉德·皮特当选最佳"美味老爸"。

However, the term is also loosely used for paper made from or containing other plants, like hemp, bamboo or mulberry or fur paper, or the pierced one painted on an acrylic board, which is recognized as his early style; the other is displaced free-style paintings painted by oil paints on a canvas; still another is the combination of the above-mentioned two styles-a displaced conversion of the first one.

向国华这次展出的作品主要有三种类型，一种是综合材料作品在宣纸或皮纸上烫洞做出的山水画或压克力板上的镂空山水画，这是他的早期风格；另一种是在画布上用油画材料绘制的错位的写意画；第三种是前两种风格的结合，即把第一种进行错位处理。

In this topic, the dynamic analysis methods for piezoelectric vibrator are studied systematically based on the theoretical model, FEM numerical experimentation and FEM governing equation for given compound-mode vibrator, and some valuable conclusions are obtained. The main work accomplished is summarized as follows: 1.Elaborate the main modeling methods for piezoelectric vibrator and the significance and necessity to study the dynamic characteristics of piezoelectric vibrator which emphasize the urgency of this paper. 2.Take the bending deformation induced by piezoelectric ceramic as example, the energy transfer mechanism of electric energy to mechanical energy are analyzed; the motion and force transfer mechanism are analyzed for the longitudinal-bending vibrator. 3.Based on mode assumption and Hamilton principle, the coupling model of piezoelectric vibrator of linear USM is built; moreover, the equivalent circuit model is obtained and a coupling equation represents the relation between electric parameters and mechanical parameters is derived which provides foundation to match the vibrator and driving circuit. 4.Combine the constitutive equation of piezoelectric ceramic with elastic-dynamical equation, geometric equation in force field and the Maxwell equation in electric field and the corresponding boundary condition equation, the FEM control equation for piezoelectric vibrator of USM to solve dynamic electro-mechanical coupling field is established by employing the principle of virtual displacement. The equation lays the foundation to study the non-linear constitutive equation of piezoelectric ceramic driven by high-power. 5.Define the dynamic indexes of characteristic of vibrator and carry out variable parameters simulation by calculating the model parameters and the electric characteristics of vibrator are simulated according to the equivalent circuit model. By numerical experimentation, the working mode of vibration of vibrator and the shock excitation results of the working frequency band which provides the mode frequency to realize bimodal are analyzed. Detailed calculation of the electro-mechanical coupling field parameters is made by programming the FEM control equation.

本课题从理论模型、有限元数值试验、有限元控制模型等方面以复合振动模式振子为例对超声电机压电振子的动力学特性及其分析方法进行了全面系统地研究，得出了许多有价值的结论，主要概括如下： 1、阐述了目前针对超声电机压电振子的主要建模方法，对压电振子动态特性的研究意义和必要性进行了论述，突出了本文研究内容的迫切性； 2、以压电陶瓷诱发弹性体发生弯曲变形为例，分析了压电陶瓷通过诱发应变来实现机电能量转换的机理；对基于纵弯模式的压电振子的运动及动力传递机理进行了分析； 3、基于模态假定，利用分析动力学的Hamilton原理，建立了面向直线超声电机压电振子的机电耦合动力学模型，并据此建立了压电振子的等效电路模型，导出了电参量与动力学特性参量的耦合方程，为压电振子与驱动电路的匹配提供了依据； 4、从压电陶瓷的本构方程出发，综合力场的弹性动力学方程、几何方程、电场的麦克斯韦方程以及相应的边界条件方程，采用虚位移原理，建立了压电振子动态问题机电耦合场求解的有限元控制方程，为研究其大功率驱动下的非线性本构模型奠定了基础； 5、界定压电振子的动力学特性指标，对压电振子的机电耦合动力学模型参数进行计算及变参数仿真；依据等效电路模型，对压电振子的电学特性进行了仿真分析；通过有限元数值实验，对压电振子工作模态附近的模态振型及工作频率附近的频段进行了激振效果分析，找出了实现模态简并的激振频率；利用有限元控制方程，通过编程计算，对压电振子的力电耦合场参数进行了详细计算，得出了一些有价值的结论。

In the dissertation, the study on carbon fiber reinforced concrete andplain concrete has been reviewed. Then mechano-electric effect of CFRC and plainconcrete, its mechanisms, the interaction among mechano-electric effect,piezoresistivity and seebeck effect, the electrical circuit model of concrete based onmechano-electric effect, electromagnetic emission of concrete, the mathematicalmodel of mechano-electric effect are investigated. Also the converse effect ofmechano-electric effect of CFRC and plain concrete, that is, electromechanicaleffect, and the interaction between electromechanical effect and electrothermaleffect of CFRC are examined.

本文对碳纤维混凝土和素混凝土机敏性的国内外研究现状进行了全面的评述，在大量实验分析的基础上，系统地研究了碳纤维混凝土和素混凝土的力电机敏性，研究了力电效应机理、力电效应与其它效应(压阻效应、塞贝克效应等)的耦合关系、基于力电效应的混凝土电学模型、混凝土电磁发射现象、混凝土力电效应的数学模型等；论文同时对混凝土和素混凝土的电力效应、碳纤维混凝土电力效应与电热效应的耦合关系等进行了探讨；最后开展了基于力电效应的机敏混凝土结构应用研究。

New accessible long-term production and sale of foot brush pressure molding machine, drilling machine pressure foot gong machine spindle molding machine fittings imports of Chinese-made machine stress foot brush, foot stress tablets rigs such as the development of knife Block Sales: Taiwan substantial, Taiwan Li-song, Taiwan's total grid, Taiwan Ende, Germany SCHMOLL, Italian PLURITEC, USA ACC, the United States EXCELLON, Japan's Hitachi, Switzerland POSALUX, Chongqing substantial Vientiane, Chengdu Tianma stars VEKEN Han ten thousandNC NC East Units Klingelnberg long Ze 6 The United States United States Telemark Telemark 5 JAGER various drill chucks knife Block molding machine needle plate for industrial use in vitro toothbrush cleaning rod pin brush sets Central, QIC thrust bearing, air bearing surrounding the circuit board supplies, such as fittings, quality and high precision, stable quality, price concessions, there are hundreds of traders PCB supplies, drilling machine repair business with the Division has built cooperative relations many enterprises are designated suppliers, are popular among clients trust and support.

新易达公司长期生产，销售成型机压力脚毛刷，钻孔机压脚，锣机主轴配件成型机进口国产机压力脚毛刷，钻机压力脚垫片刀座等开发销售：台湾大量、台湾力嵩、台湾总格、台湾恩德、德国SCHMOLL、意大利PLURITEC、美国ACC、美国EXCELLON、日本日立、瑞士POSALUX、重庆大量万象、成都星维科天马大族数控万达松林数控东台KlingeLnberg 龙泽美国玛克6 美国玛克5 JAGER等各种钻机成型机夹头刀座针盘工业用牙刷试管通条刷销钉套环、QIC止推培林，空气培林等线路板周边耗材配件，品质精度高、质量稳定，价格优惠，全国有数百个PCB耗材贸易商，钻孔机维修商与本司建有合作关系，是众多企业公司指定的供应商，深受广大客商信任和支持。

The company is specialized in producing transparent acrylic resin toilet cover and sanitary ware factories, long-standing people-oriented, customer first, quality to win business philosophy to first-class technology, excellent quality and efficient management for customers Provide personalized, human services,"Sea World","Animal Paradise","colourful","Creative" a unique series of innovative products, superb technology, high-quality, advanced features to enable users in the daily Feelings in the United States and appreciate the United States, the influence of the United States, to create the United States, the majority of users are the universal favorite.

本公司是专业生产透明树脂马桶盖及压克力洁具的厂家，长期以来坚持以人为本，用户至上，以质取胜的经营理念，以一流的技术，卓越的品质，高效的管理为广大客户提供个性化、人性化的服务，"海洋世界"、"动物乐园"、"色彩缤纷"、"创意无限"等系列产品新颖独特，工艺精湛，质量优异，功能先进，使广大用户在日用中感受美、体味美、熏陶美、创造美，得到了广大用户的普遍喜爱。

To cite a few examples: the acrylic window at the Ocean Voyager exhibit is the largest window on the North American continent; a living coral reef now flourishes in downtown Atlanta in the Aquarium's Tropical Diver Gallery; the Education Loop is a major acknowledgement of the importance of education in public aquariums; the Correll Center for Aquatic Animal Health is a great example of public philanthropy and a partnership with a research university.

举几个例子：在 Ocean Voyager 展览中使用的压克力窗口，就是北美大陆上最大的窗口；活珊瑚礁现在就茁壮生长在位于市中心的亚特兰大水族馆的热带潜水长廊；这种在公众水族馆间的环式教育是很重要且值得提倡和感激的；为研究水产动物的健康而建立的珊瑚中心，就是一个公共慈善事业与研究型大学（ Georgia 大学）伙伴关系的见证。

This scheme takes glass acrylics as the main material and frustum while lamps, light and shadow as the main shaping means. We believe that we should use a kind of "flowing" beauty to express the sense of freedom and good order, integrate materials and techniques and take full use of simple ways so as to give people a sense of dizzy smoothness not a kind of ostentatiousness.

本案中以玻璃压克力为主材，为截体，而灯、光、影是主要的造型手段，我们认为要将一种&流动&的美表现出淋漓有序的感觉，利用材料和技法的相辅相成并通过朴实的手法自然的实现，才可能使人感受到一种眩目中的流畅，而不是一种浮华。

It is time for you bid farewell to the outdated diamond –gluing craft instead of this, our company puts out the new generation specialized equipment which can decorate diamond on barrettes and all kinds of plastic products, by having drawn on the essence of the most advanced international technology, researched carefully and improved over and over again.

你可以告别胶水粘钻了，本单位汲取国际尖端技术精华，经潜心研究，反复改进，成功的找到了代替过去用胶水粘钻的工艺，推出了新一代在压克力发夹、眼镜等一切塑料产品上嵌钻的专用设备。通过一年来的实践，我们欣喜的发现，新一代镶钻机的使用，摆脱了一直以来用胶水粘钻所带给我们的困扰，确实给加工作业带来许多新特性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。