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According to the partial research work of a project supported by the NSFC, this paper made an investigation in detail on the dynamics, the performance and the cataphoresis effect of Ca+ recombination laser excited by high repetition rate pulsed discharge.

高频脉冲电泳式He-Ca+复合激光与传统的He-Ca+复合激光相比，具有避免阻挡光路、能够相对独立控制钙蒸气压强、维持长期稳定放电和较长寿命的特点，能同时输出几百毫瓦功率的近红外RM跃迁激光和近紫外的复合激光，在微电子技术、激光治疗和可调激光器泵浦源等方面具有广泛的应用前景。

In 1952, W. Ross Ashby, a cybernetician interested in how machines could learn, wrote," does not specify in detail how a kitten shall catch a mouse, but provides a learning mechanism and a tendency to play, so that it is the mouse which teaches the kitten the finer points of how to catch mice."

Ross Ashby （2），一个对机器可以如何学习的课题感兴趣的控制论工作者写道："并没有具体规定小猫如何抓老鼠，但是提供学习机制和演练的趋向，是老鼠将捕鼠的要领教给了小猫。"

We catch the innovation breakthrough point in each work detail, improves continually.

我们在每个工作细节上捕捉创新突破点，持续改善。

The second part is the introduction to several common File Categorization methods and the algorithms are presented in detail.

然后，本文介绍了几种常用的基于向量空间模型的文件分类算法，同时描述了具体的算法步骤。

The second part is the introduction to several common Text Categorization methods and the algorithms are presented in detail.

然后，本文介绍并比较了几种常用的基于向量空间模型的文本分类算法，同时描述了具体的算法步骤。

Show model combines growth model, math model and VR technologies to design the proper object structure of each organ of virtual plant. First of all,research background, research content of virtual plant area and Virtual Reality technology are introduced. The concept of VR and research content of virtual plant are defined. Secondly, we analyze math model of virtual plant, including Bezier curve, NURBS curved surface, fractal system, L-system and Catenary curve. Thirdly, we give show model of virtual plant in detail. Finally, the design of the platform and growth model on XML script is introduced , and how to show the virtual plant in the platfrom is discussed too.

本文首先介绍了虚拟植物领域的研究背景、研究内容和虚拟现实技术，明确了虚拟现实的概念和虚拟植物的研究范畴，然后介绍了虚拟植物器官的数学模型，对各个器官展开了拓扑结构分析，建立有针对性的数学模型，先后介绍了Bezier曲线，NURBS曲面，分形系统，L-系统和悬链线曲线，接着详细分类介绍了虚拟植物器官的显示模型，最后介绍了虚拟作物平台的设计，平台中基于XML脚本的生长模型，以及虚拟作物在作物平台中的显示。

Old theory of virtual cathode oscillator has been summarized and supplemented in detail.

对以往的同轴虚阴极振荡器理论研究进行了比较详细的总结和补充。

Some detail descriptions still have the realistic meaning of the feeling person's catholicity.

某些细节描绘依然具有感人的普遍性的现实意义。

I wanted every detail to reflect the catwalk quality of the designer brand.

我想每一个细节，以反映名牌时装表演的质量。

Then the boundary element integral equation of interior and exterior form is deduced in detail, also the form with corner coefficient. The significance for numerical calculation and principle of the singular integral is analyzed, and a non-isoparametric transformation method is presented to calculate weak singular integral and Cauchy integral, the method presented provides us a very simple way to computer the two kinds of singular integral of Helmholtz boundary integral equation, and it is easy to program in computer. After the difficulty of the calculation for multi-frequency of Helmholtz boundary element is explained, a method named SECHIEF (Series Expansion Combined Helmholtz Integral Equation Formulation), which is focused on the computational efficiency, is presented.

对结构声辐射的边界积分方程的内部形式与外部形式进行了详细的推导，给出了角点系数的计算方法与边界积分方程的形式，在此基础上，分析了奇异积分产生的原理及其对数值计算的重要性，提出了一种计算奇异积分的非等参(来源：Ae8a8BC论文网www.abclunwen.com)单元的变换方法，该方法给Helmholtz 声学边界积分方程中的弱奇异积分与Cauchy 奇异积分的计算以及编程提供了极大便利。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。