查询词典 well-ordering set

The cofinality of a set of ordinals or any other well ordered set is the cofinality of the order type of that set.

序数或任何其他良序集合的集合的共尾性是这个集合的序类型的共尾性。

This dissertation puts forward a structuring method of some complicated problems as well as methods of combination of the judgment matrix on group decision basis demonstrates that these two ways strengthen the consistency of the judgment matrix. Besides, it makes some researches into theory of combination of judgment matrix on the group decision basis, suggests two methods of calculating the coefficient of the convex combination and puts forward a method to construct individual and comprehensive judgment matrix based on rough-set by cooperating with others accordingly.

5给出了群决策条件下复杂问题结构化方法；提出了群决策条件下群体AHP判断矩阵集结的两种方法，证明了这两种集结方法保持或改善了判断矩阵的一致性；研究了群决策条件下判断矩阵优化集结原理，给出了判断矩阵两种凸组合系数优化计算方法；合作提出了一个基于Rough Set的个体判断矩阵和综合判断矩阵构造方法。

In this paper, the concept of network security and security structures of OSI and Internet is introduced, and various threats confronting the computer network are also discussed. Several kinds of network information security technologies, including firewall technology, virtual private network, intrusion detection system, data encryption technology, identity authentication and security protocol etc. are also examined. The security of internal network is the biggest problem in the construction of each network. The solution to this problem lies in setting up a firewall. The theory of a firewall and the approach to its actualization is studied. Intrusion detection system, an important part of the computer network security system, has gained extensive attention. IDS monitors the computer and network traffic for intrusion and suspicious activities. It not only detects the intrusion from the extranet hacker, but also the intranet users. The emergence of virtual private network paves the way for realizing secure connection of LAN quickly and at a relatively low cost. The concept, function, key techniques, including the tunnel technology, and the ways to realize VPN are expounded in this paper. Also introduced is the data encrypt network technology, which is called the soul of computer network security, such as digital digest, digital signature, digital certificate, digital encrypt arithmetic and so on. At the same time, the principle and the process of implementing network security by digital certificate and digital signature, the basic principle and characters of security protocols, and finally, three of the security protocols, concerning the security problems in network, IPsec, SLL and SET are analyzed in detail Computer network system should be a system of dynamic defence, both dynamic and static, passive as well as active, and even offensive, combined with management and technology.

本文系统地介绍了网络安全的概念、OSI及Internet的安全体系结构，并讨论了计算机网络面临的各种安全威胁；内部网络的安全问题是每个建网单位面临的最大问题，可以认为防火墙技术是解决网络安全的一个主要手段，本文研究了防火墙的原理及其实现手段；作为一种主动的防御措施，入侵检测系统作为网络系统安全的重要组成部分，得到了广泛的重视，TDS对计算机和网络资源上的恶意使用行为进行识别和响应，不仅检测来自外部的入侵行为，也监督内部用户的未授权活动；虚拟专用网技术的出现，为实现网络间的连接提供了快速安全但又相对便宜的手段，本文较深入的探讨了实现VPN的隧道技术，并对VPN的概念、功能、实现途径、基本构成、关键技术及发展前景等问题进行了全面论述；数据加密技术是网络安全核心技术之一，本文从数据加密算法、数字摘要、数字签名及数字证书等几方面简要介绍了数据加密技术，并分析用数字证书和数字签名实现网络安全的原理和过程；对安全协议的基本原理、主要特点进行了较为深入的研究，并就网络的安全性问题剖析了三种安全协议：IPsec协议、SLL协议和SET协议。

In this paper, an algorithm based on heuristic function for minimum set covering problem is presented, as well as the definition of complete strategy concept and the method to structure heuristic function.

本文给出了求解NP困难问题的完备策略的概念，在此基础上提出了一个求解集合覆盖问题的启发函数算法SCHF（set－coveringheuristicfunction），文中对该算法的合理性、时间复杂性以及解的精度进行了分析，本文的主要创新点是用已知的完备策略建立启发函数，并用该启发函数进行空间搜索求出优化解。

This dissertation proposes group reasoning and group AHP-based GDSS structure and its decision steps to solve the problems existing in research of theory and application of GDSS. Besides, the dissertation also studies the method of group reasoning on rough-set and qualitative reasoning method basis in GDSS. It also studies on constructing method of hierarchy structure of group AHP in GDSS and combinative method of judgment matrixes. Moreover, it studies on method regarding construction of judgment matrixes on rough set based and optimization theory of convex combination parameters of judgment matrixes as well. Finally, it develops an AHP based GDSS to demonstrate the efficiency of these methods.(1) This dissertation also summarizes the developing trend of GDSS and analyses problems as regards the research of GDSS.

本论文针对GDSS理论研究及应用中存在的若干问题，提出了基于群体推理及群体层次分析法的GDSS结构，并给出了基于该结构的GDSS的决策程序；研究了GDSS环境下的基于粗糙集理论及定性推理技术的群体推理方法，并举例说明了方法的有效性；研究了GDSS环境下群体AHP层次结构的建立、判断矩阵集结的理论与方法；研究了判断矩阵凸组合系数的优化原理；探讨了基于Rough Set的判断矩阵构造方法；开发了一个基于AHP的GDSS原型系统，旨在验证本文关于GDSS环境下群体AHP有关方法的有效性。

And with regard to these deficiencies, the author of this paper puts forward: 1 nesting encryption technologies to improve the poor security, flexibleness and adaptability of SET protocol caused by multi-encryption algorithms; 2 enhancing the mediation function of the banks issuing cards to solve the dissension between the cardholders and the merchants, as well as the storage of the information in transaction.

针对存在的不足提出了采用嵌套加密方来解决SET协议受加密算法限制所造成的安全强度不够高、加解密不够灵活以及适应性差的缺点；提出了增加发卡银行的仲裁功能来解决持卡人与商家之间的纠纷问题以及交易信息的保存问题。

Strong technical force, well equipped, set more than 10 years of professional experience in machinery manufacturing, to set up factories in the country completely on its own production and marketing of machinery manufacturing plant, and the introduction of Japan, Taiwan and other advanced equipment, technologies and the development of manufacturing components A variety of mechanical equipment, there are two main products, hydraulic pressure of 4-, C-type hydraulic pressure, pneumatic pressure bed, air-pressure supercharger oil, gas, hydraulic-rivet machines, membrane switch drum kits pressing machine, dual - Die-pressing machines, pneumatic peeling machine, precision Dijiao machine, precision high-speed presses, open-tilting presses, automatic drilling tapping machines, pneumatic Arm tapping machines, automatic air Tape feeder, vibration Tape feeder, Hydraulic power portfolio, widely applicable in the electronics, electrical appliances, computers, metal, plastics, lighting, bicycles, steam locomotive, machinery and other industries, welcomed by the majority of users, machine-selling Taiwan, Southeast Asia and China's provinces.

公司技术力量雄厚，设备齐全精良，集十余年的专业机械制造经验，设厂于国内完全的自行产销的机械制造工厂，并引进了日本、台湾等先进设备、技术及元件开发制造多种机械设备，主要产品有二、四柱油压压床，C型油压压床，气压压床，空油增压压床，气油压式铆钉机，薄膜开关鼓包热压机，双面模热压机，气压剥皮机，精密滴胶机，精密高速冲床，开式可倾压力机，自动钻孔攻牙机，气动旋臂攻牙机，空气自动送料机，振动送料机，油压动力组合等，广泛适用于电子、电器、电脑、五金、塑胶、灯饰、自行车、汽机车、机械等各种行业，深受广大用户欢迎，机械广销台湾，东南亚及中国各省。

The plane grating is priced in terms of square meter; the ladder step is priced in terms of piece; the erection clip is priced in terms of set; guard board, front shield cover and paddle board are priced by linear meter; stealing well cover and manhole cover are priced in terms of set; ordinary ditch cover is priced by area or linear meter.

平台钢格板按照平方米计价；楼梯踏步按件计价；安装夹按套计价；挡边板、前护板和踢脚板按延长米计价；窨井盖stealing well cover、沙井盖manhole cover按套计价；普通明沟盖板按照面积或延长米计价。

If you place it well, it will usually be taken immediately. Set the hook and hang on.

这是要做的当然是set hook 和 hang on人鱼角力中了。

On strategy direction and tactics method attacking one pin fighting with camp in large scale for the job selling well has set up a standard , sell well in the battle planning and reaching being put into effect to the strategic objective , still have decisive effect but, no only, camp one pin need has method thought , sells well in the sight needing to have method more!

如何实施区域市场大规模攻击战营一销在战略方向及战术方法上为行销工作设立了标准，但行销战役的策划与实施对于战略目标的达成，仍然具有决定性影响，不只是营一销需要有方法思想，行销更需要具有方法的眼光！

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。