查询词典 generation

The interpolate algorithms of three-order NURBS curve and double three-orders NURBS surface are presented. The expressions of partial derivative and normal curvature of NURBS surface are derived by the theory of differential geometry. The geometric characteristics of different curvature area of the free-form surfaces are analyzed in detail. All these work lays a theoretical foundation for constructing the cutter location calculating model of free-form surfaces NC machining. 2 On the basis of analyzing the methods of cutter path generation, the standard of evaluating the various methods of cutter path generation is presented. The method of generating cutter path with constant scallop height is presented for the first time.

本文以提高复杂曲面多坐标数控加工精度和加工效率为目的，在对国内外研究现状进行深入分析的基础上，对数控编程中各环节的关键技术问题进行了深入研究，主要内容包括以下几方面： 1 分析了复杂曲面各种造型方法的优缺点，给出了根据各种边界条件所确定自由曲面的NURBS表示方法以及三次NURBS曲线曲面反算算法；用微分几何理论推导了NURBS曲面的偏导矢及法曲率计算表达式；对曲面不同曲率特性区域的几何特征进行了深入分析，为建立复杂曲面的数控加工刀位计算模型奠定了理论基础。

Based on image we study the tool path generation technology and problem of tool path planning. We put forward an algorithm for self-discrimination of island relation and an automatic intersected method of the region machining unit, which can judge the relationship among any plane obturate contour line effectively and swiftly. We also study the tool path generation technology of two-dimensional machining, basso-relievo machining, three-dimensional lifting-pen machining. Meanwhile, we put forward an optimize approach of tool path, which improve the efficiency of engraving.

研究了图像的刀具路径生成技术与轨迹规划问题，提出了基于射线的岛屿关系自动判断和区域加工单元的自动分割方法，有效、快速地判断了平面任意封闭轮廓线之间的关系，研究了平面任意区域填充加工、浮雕加工、三维提笔加工的刀具路径生成的技术，提出了刀具路径优化方法，提高了雕刻加工的质量和效率。

Incidentally, on the "T human viruses," the game in this series, there are two very important information about the situation: one is the "Resident Evil generation" of the ocean found Lane "operations MembersのDiary "and the other is in Part IIレンオ(" Resident Evil II,"the actor, in English formerly known as" Leon ", in this paper, translation of the name of" Lyon ") debut of the files"ンベLove hotベチトルレのトㄧポ"(in the second generation there is a journalist, he seems to understand a number of umbrella companies and the secret police between the unknown and will be written in a report that the file).

顺便一提，关于「T病毒侵害人体」，在本系列的游戏里有两份非常重要的资料，说明了大概的状况：一份是「生化危机一代」的洋馆里所发现的「作业员の日记」，另一份则是在二代レオン篇（「生化危机二代」的男主角，英文原名为「Leon」，在本文采用翻译名称为「里昂」）登场的档案「ベン·ベルトリッチのレポㄧト」（在二代有出现一位记者，他似乎了解一些雨伞公司及警察局之间不为人知的秘密，并且将之写成了一份报告，就是这个档案）。

After that, the author investigated the current condition of the feeding of the old peasants from two aspects: 1 the domestic condition of the aged peasants and the changes from generation to generation; 2 the essential condition of the aged peasants and their degrees of approbation on the issue of the current endowment insurance.

然后从两个方面对我国老年农民养老的现状展开了实证调查：一是农民老人的家庭状况及代际变化情况；二是老年农民的个人情况及对目前养老保险的认可程度。

The realize method of ITC strategy in FSTP induction generation system is studied. In order to improve stable performance of FSTP induction generation system, SVM-ITC (ITC based on space vector modulation) is investigated. Creation method of reference voltage vector which includes change trend and magnitude information of flux link and torque is presented. Because there is no zero voltage vector in four-switch system, a method which employs opposite vector in equal time to replace zero voltage vector is proposed. Two vector modulation schemes are presented.

为提高容错型四开关三相异步发电系统的稳态性能，进行了基于空间矢量调制的瞬时转矩控制研究，提出了包含磁链与转矩变化趋势与大小信息的电压参考矢量生成方法；针对四开关系统无零电压矢量的情况，提出用等时间相反矢量来代替零电压矢量的作用，并给出了两种矢量调制方案。

The material job and main conclusion are as follows:(1) A simple boundary orthogonalization procedure independence grids generation method is put forward on the base of algebraic grid generation method; Data structure and computational model on interface are established aiming at blocks of structured grids.

本文针对粘流场数值模拟技术的研究现状和发展动态作了比较全面的回顾与展望，重点研究了网格生成技术、数值求解技术、湍流模型技术和动边界模拟技术，在此基础上建立了模拟自由面湍流场的数学模型，并成功地应用到二维溢流坝和带闸墩的三维溢流坝过坝水流的数值计算。

The material job and main conclusion are as follows:(1)A simple boundary orthogonalization procedure independence grids generation method is put forward on the base of algebraic grid generation method; Data structure and computational model on interface are established aiming at blocks of structured grids.(2) SIMPLE procedure is established in nonorthogonal grids by use of the finite volume method and in-depth discusses on special topic such as boundary condition in nonorthogonal grids, deferred correction method and grads compute on calculational nodes, and so on.

本文完成的具体工作和主要结论如下： 1以代数网格生成方法为基础提出了一种简单的、可独立于网格生成方法之外的边界正交化技术；针对分区结构网格系统建立了分区交界面处的数据结构与计算模型； 2利用有限体积方法在非正交同位网格系统中建立了SIMPLE求解算法，对非正交网格系统中的边界条件、延迟修正技术及计算节点的梯度计算等专题进行了深入讨论。

On the basic of above job a mathematical model of simulation turbulent flow with free surface is established and triumphantly applied to numerical computation on 2D spillway and 3D spillway with frusta of brake.The material job and main conclusion are as follows:(1)A simple boundary orthogonalization procedure independence grids generation method is put forward on the base of algebraic grid generation method; Data structure and computational model on interface are established aiming at blocks of structured grids.

本文针对粘流场数值模拟技术的研究现状和发展动态作了比较全面的回顾与展望，重点研究了网格生成技术、数值求解技术、湍流模型技术和动边界模拟技术，在此基础上建立了模拟自由面湍流场的数学模型，并成功地应用到二维溢流坝和带闸墩的三维溢流坝过坝水流的数值计算。

In practice, to get the good generation, We improve match tracking abnormal phenomenon and generation overabundance class phenomenon.

在研究分子筛合成反应条件的分类问题时，采用模糊ARTMAP网络，针对该网络的匹配跟踪异常现象进行了有效的处理。

The study focuses on "value diversity", and explores it step by step with a route of "Review -Rethink and Criticism -Construction and Transcendence -Application"From a historical perspective, the study reviews and summarizes western educational evaluation theories and technology development, describes evaluation methods of so-called first three generations evaluation methods, and analyzes historical critique of them, including their failure to accommodate value-pluralism, a tendency towards managerialism, and the overcommitment to the scientific paradigm of inquiry; and then further points out that the fourth generation evaluation methods can be introduced for their effective response to problems of value-pluralism. The study focuses on the characteristics and ideology of the fourth generation evaluation theory; based on which, the research work investigates the social and cultural foundations of education evaluation theory and technology formation development from the dimension of the evolution of values foundation, the impact of social ideology and methodology conversion.

研究从历史的视角回顾、梳理了西方教育评价理论与技术的发展，对称之为前三代评价的方法进行了描述，并分析了历史上对这些早期评价方法的批判，包括对价值多元化的排斥问题、管理主义倾向、对调查的科学范式的过度推崇等；进而指出，第四代评价方法能够有效回应价值多元化问题而被引入，论文重点探讨了第四代评价理论的思想及特点；在此基础上，从价值基础的演变、社会思潮的影响和方法论的转换等维度考察了教育评价理论与技术形成发展的社会文化基础。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。