查询词典 problem of fixed points

The first part of this article, on the base of dissertating the conception and characteristics of lose land's peasantry and the problem of lose land's peasantry, analyzes the general situation of lose land's peasantry and the problem of lose land's peasantry, and points out the importance and pressure of dealing with the problem of lose land's peasantry.

笔者通过实地调查，了解了失地农民的生活、思想现状，采用实证分析和综合分析的方法寻找困扰失地农民的根源；通过对比分析国内外解决失地农民问题的经验和教训，综合经济学、法学和社会学等有关学科的知识，提出了解决失地农民问题的看法和建议。

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

This method represents the virtual objects in Euclidean space instead of in affine space, which is consistent with the popular graphics rendering tools such as OpenGL and is more common in practice. A new classification based local and global tracking strategy to match features between the reference image and the currently frame directly is presented, which enables the augmented reality system working effectively even under large changes of viewing angles. A novel affine coordinate system definition method based on a collection of feature points is also proposed, which makes the tracking method effective even when not all the reference points are detected during the whole process, as long as there are at least four pairs of reference points correspondences.

该方法以仿射变换为桥梁来建立欧氏空间下的摄像机坐标系与世界坐标系之间的变换关系，它与OpenGL等当前流行的图形渲染工具一致，具有更强的通用性；采用基于分类的自然特征匹配策略，能够在视角和视点发生大幅度变化情况下依然正常工作；提出基于特征点集合的仿射坐标系定义方法，使增强现实系统在最小配置下只需4点追踪成功即可完成注册，比需要6点的透视投影方法具有更好的健壮性和精确性。

The computer simulated sampling points with different grid cell sizes were generated and then interpolated into 10000 points with inverse distance weighted. Finally, the original value was compared with the interpolated value for the same grid cell to find the sampling error, and optimal sampling points were determined according to the allowable sampling error.

利用计算机按照不同的网格单元尺寸(如3×3，5×5，7×7等)进行采样，之后利用采样值进行IDW插值处理，将数据点恢复到原始的10000个，并把插值结果与原始值进行比较即可得到采样误差。

Turning belt conveyor belt with a professional calculation software to calculate tape at various turning points, pull suffered, according to these parameters, calculate the various turning points and turning points before and after the roller bracket roller tilt angle and tilt angle to ensure that tape in the turning point operation reliability.

采用专业的胶带计算程序软件计算出胶带在各个转弯点所受到的拉力，根据这些参数算出各个转弯点及转弯点前后的托辊支架的倾斜角度和托辊倾斜角度，确保胶带在转弯点运行的可靠性。

Tape using professional calculation software to calculate tape at various turning points, pull suffered, according to these parameters, calculate the various turning points and turning points before and after the roller bracket roller tilt angle and tilt angle to ensure that tape is running at the turning point reliability.

转弯皮带输送机采用专业的胶带计算程序软件计算出胶带在各个转弯点所受到的拉力，根据这些参数算出各个转弯点及转弯点前后的托辊支架的倾斜角度和托辊倾斜角度，确保胶带在转弯点运行的可靠性。

On the basis of OCM, segmentation based on curvature radium is presented in the paper, in which curvature radium is calculated using parametric-surface fitting, and detecting edge points is realized from orthogonal direction, which ensure the integrality of edge points. Since the data is organized by cross-line in OCM, a new arithmetic, Double-direction Angle Difference arithmetic, is brought forward, which can pick up edge points more quickly.

物体的表面一般由多个曲面相交组成，要建立完整的几何模型，需要对测量数据进行区域分割——区分不同曲面的数据，现有的区域分割大多是对单视图的图像式测量数据进行的，但完整的CAD模型需要联合多个视图产生，本文在上面提出的三维正交模型的基础上，提出了三种区域分割方法：第一种方法是基于曲率半径的数据分区方法，通过二次参数曲面拟合计算局部曲率半径，从正交的多个方向进行检测，保证了边点提取的完整性。

In the geometry of matrices, the points of the associated space are a certain kind of matrices, there is an arithmetic distance of two points in this space, and there is a transformation group acting on this space. Two distinct points is said to be adjacent if their arithmetic distance is one or minimal.

在矩阵几何中，空间中的点是某一类矩阵，两点间存在一种算术距离，还有一个变换群作用在这个空间上，两个不同的点间的算术距离为1或最小时称这两点是粘切的。

This thesis inductively points out where the logicians did not satisfied with the theory of type mainly lies in two points, the axiom of reducibility first and the vicious-circle principle second. This thesis has discussed Ramsay's improvements as well as the criticism from Godel. Then, it observes that they two had a common view, viz. rejecting the vicious-circle principle from the points of Realism. Against Russell's insisting on this principle, such a rejecting seems so distinguished, which, this thesis argued, was the deep difference between Realism and Nominalism shedding on the reality of classes.

文中主要探讨了莱姆塞对类型论所做的改进以及哥德尔对类型论的批评，指出这二者的共同点是从实在论的立场来拒斥恶性循环原则，他们对恶性循环原则的拒斥同罗素对它的坚持形成了鲜明的对比，本文认为，这种对比所反映出来的差别实际上就是在类的实在性问题上实在论和唯名论的差别。

So, I could spend 2 points in Heightened Senses which is a berserker skill, and 3 points in Bash which is a Juggernaut skill, thus adding up to 5 points and granting me access to the second tier of skills for all of the trees.

所以，我可以在狂战士技能树的高度警觉上加2点，在毁灭技能树的重击上加3点，这样就有5点了，然后就可以允许我在所有这些树的第二层加点。

They have quite a lot of work to do.

他们有许多工作要做。

Let us give you a more elaborate example of this process.

让我们给你这个过程的更多的详细例子。