未实现的

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。

Because of the development level"s restriction of moral integration"s subject and object, moral integrations realization inevitably has some limits, which include three aspects as the following: the incompleteness of social development limits the realization of moral integration; the incompleteness of moral development limits the realization of moral integration; the restriction and effect of traditional culture of morals make the realization of moralintegration have some limits.

由于社会主体与道德客体自身发展水平的制约，道德整合的实现必然具有一定的限度。它表现为这样三个方面，即社会主体自身发展的不完善性限制着道德整合的实现程度；道德客体自身发展的未完成性限制着道德整合的实现程度；传统道德文化的制约与影响使得道德整合呈现出一定的限度。

In a study of nineteen sets of twins who had been separated from birth,investigations found that in approximately two thirds of the sets there were no more significant defferences than existed among unseparated pairs of twins.

大约三分之二的双胞胎之间的差异并不比未分开抚养的双胞胎之间的差异显著。上述句子形式上都是肯定的，但是意义上却是否定的。第一句通过free词缀实现否定意义，第二句通过no …… more than来实现否定意义。像这类句子就叫做暗否定。一般情况下，英语句子中的暗否定可以通过句子、短语和词来实现。

Though the molecular mass and the hypoglycemic activity of myristic acid modified HIDesB30 are both consistent with Detemir, the expression system, purification artwork and the methods of modification were different from Detemir.

本研究实现了含短C肽的人胰岛素原类似物HMPIDesB30在毕赤酵母中的高效分泌表达，表达量达1 g/L，分泌表达的重组蛋白HMPIDesB30未出现糖基化，未形成二聚体和多聚体，并具有生物学活性。

Karl Marks ; manuscript of economics and philosophy in 1844; crude communism ; system of sharing wealth and wife ; communist philanthropism ; workwoman's prostitution at large ; relation between men and women

而卡尔·马克思的共产主义和社会主义&博爱&观则是人类文明的较高的尺度，也是人类未来的理想，是卡尔对人类主体际间的终极人文关怀！&博爱&是理想的，是人类&应该的&，虽然人类社会至今未实现过全面的&博爱&，但她像灯塔一样在指引着人类的诺亚方舟

The main assembly unit partition is to mach tables of the bill of material, and unassembled partition is to search liaison between parts, compute assembly polymerization.Chapter 5 gives the general architecture of a prototype system for assembly unit partition based on knowledge under the CATIA environment to validate the ideas and methods proposed in this dissertation.

第四章提出了分主体装配单元划分和未组合件划分两步进行、中间穿插知识的解决装配单元划分的核心思想；以树模型为基础，通过实例知识的运用解决主体装配单元划分，以图模型为基础，通过构造关联图上的聚合度，运用模糊综合评判的方法实现了对未组合件的划分。

Opposed and intervened by Russia and other great power, squab Japan had to put down its aggressing plan, and took an more ulterior mode, which could infiltrate its force to China. So Japan camouflaged to help rebuilding and save China, and this is why the theories of Rebuilding China and saving China were so popular.

日本在甲午战争中暴露了侵略中国的野心，受到俄国等强国的反对和干涉，羽翼未丰的日本不得不暂时放下&征亚&的计划，采取一种更隐晦的方式，以既可以避开其它国家的反对，又可以将自己的势力慢慢渗透到中国，等日后强大了，实现独霸中国的目标。

In software,I used location PID control algorithm to achieve the right systemPID tuning parameters, PID controller is the ratio of integrals,integral saturation correction factor, the parameters such asintegration time, Due to reasons of space calculation unmanifestedas if this thesis, it is in the final process directly give thevalue.

在软件实现中，本人采用位置式PID控制算法来实现对系统PID参数的整定，得到PID调节器的比例、积分、饱和积分修正系数、积分时间等参数，由于篇幅原因计算过程未列如本论文内容中，只是在最后程序中直接赋予各值。

The education popularization in recent one hundred years dominately was based on elements such as the exist of the country, intests of the social classes and economy development and so on, but it never considered the equality of education opportunity from the angle of rights and human. After the late 90's of 20th century, people regularly realized that education is the basic human right which needs the guarantee from the government, the end of the education is right the human and the realization of equal education opportunity needs the state-run education and completely free education.

由于未从权利和人的角度思考机会平等，导致一些群体的教育权利实际上未得到保障。90年代中期后，人们逐渐认识到教育是需要国家保障的基本人权、教育的目的就是人自身，机会平等的实现需要国家办学、实行全部免费的义务教育。

Microscopic characteristics of cladded crystal fiber are analyzed by X-ray diffraction, Laue X-ray diffraction and scanning electron microscopy, it is found that magnesium-ion indiffusion does not affect the single crystal structure and the domain structure of the magnesium diffused crystal fiber. It is found for the first time that MgO-rich layer in the magnesium diffused LiNbO〓 surface layer exhibits the crystal structure of an unknown compound from the Li-Mg-Nb-O ternary system and MgNb〓O〓. It is proposed for the first time that this unknown compound and MgNb〓O〓 in MgO-rich layer are the real sources of magnesium-ion indiffusion LiNbO〓. Their appearance indicate that MgNb〓O〓 is in the surface layer of MgO-rich layer, the unknown compound is in the subsurface layer and beneath where the MgNb〓O〓 is located, and these compounds have obviously preferred orientation.

通过镁离子内扩散法，首次在国内实现了具有阶跃和抛物折射率分布的c轴LiNbO〓单晶光纤和a轴Nd：MgO：LiNbO〓单晶光纤的芯—包层波导结构，为我国在该项目的研究填补了空白；建立了晶纤损耗的测量系统，提出了利用单模石英光纤作为晶纤入射光耦合器的思想；通过对晶纤损耗的测量，得到了包层晶纤比未包层晶纤损耗降低约14倍的好结果，并实现了低次模传输：对经镁离子内扩散实现包层后的晶纤的微观特性，利用X射线衍射，劳厄照相和扫描电镜表征发现，晶纤并不因镁离子的内扩散而影响其单晶结构和镁的扩散层畴的变化。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。