计算机网络

As the remarkable development of computer network technology,Internet has come to pervade every aspect of our lives and society,and new direction has come forth in computer network because of new technologies.

随着计算机网络技术的飞速发展，Internet已经渗透到社会生活的各个方面，计算机网络也随着众多新技术的出现呈现出新的发展趋势。

Along with the network and technical development of information and the calculator application level of raise continuously, science and technology that the business unit hopes to pass the forerunner more and more build a carries on the usual business processing and administrations management of information-based work environment, for the business unit lead, each working talent and the business section of staff member etc. provide a good according to technical information terrace of the calculator network, the convenience top and bottom the class and the information of of internal and each section hand over with each other, norm workflow, the exaltation work efficiency and quantity, and to administration and the business management in of related text file carry on the valid management and exploitation.

随着网络与信息技术的发展及计算机应用水平的不断提高，企事业单位越来越希望通过先进的科技搭建一个进行日常业务处理及行政管理的信息化工作环境，为企事业单位领导、各个职能和业务部门的工作人员等提供一个良好的基于计算机网络技术的信息平台，方便上下级及内部各部门之间的信息交互，规范工作流程、提高工作效率和质量，并对行政和业务管理中的相关文档进行有效的管理和利用。

Provide a good according to technical information terrace of the calculator network, the convenience top and bottom the class and the information of of internal and each section hand over with each other, norm workflow, the exaltation work efficiency and quantity, and to administration and the business management in of related text file carry on the valid management and exploitation.the network that we design transacts the oneself to turn to mainly have the following function:system management, business enterprise information, product management, member management, news management, investigate management and leave a message management, the management of honor, the friendship chain connects etc.

随着网络与信息技术的发展及计算机应用水平的不断提高，企事业单位越来越希望通过先进的科技搭建一个进行日常业务处理及行政管理的信息化工作环境，为企事业单位领导、各个职能和业务部门的工作人员等提供一个良好的基于计算机网络技术的信息平台，方便上下级及内部各部门之间的信息交互，规范工作流程、提高工作效率和质量，并对行政和业务管理中的相关文档进行有效的管理和利用。

The research case of computer network and graph theory is natural similitude. The research achievement of graph theory has got the application and development in the computer networks research.

计算机网络与图论的研究对象具有天然的相似性，图论的研究成果可以在计算机网络的研究中得到应用和发展。

Discussion is made on the intrusion detection system,including two sets of systems with the models and operating process.

随着计算机网络的发展，计算机网络安全作为一个无法回避的问题呈现在人们面前，而随着攻击者知识的日趋成熟，攻击工具与手段的日趋复杂，入侵检测系统作为一种重要检测手段应运而生。

Computer network experiment is an important tache in the teaching of computer network theory at university.

计算机网络实验是高校计算机网络理论教学的重要环节。

They must be read by computers or anagogic equipment. They are relative small and light but they can be deposited a vast of information and the information can last long. Multimedia and interactive internet publications can be retrieved conveniently. The information of internet publications can be refreshed, edited, transferred, communicated by Internet quickly, internet publications possess access speeds, retrieval accuracy, interactivity, and flexibility.

网络出版物具有信息量大，使用方便，可对信息进行各种处理，检索快速便捷，图文声像并茂，交互性强，省去了印刷、装订、储运等环节，降低了生产成本，出版周期短，信息通过计算机网络高速传播，信息获取快、传播快、更新快等特性；并且具有计算机检索功能、超文本功能，使之成为一种具有强大生命力的大众文化传播媒体，给人类社会带来了深刻的影响。

The goal is by giving students a global understanding about the principles of the computer networks, and making them understand the way to design, analyse and applicate the computer networks, to form a good preparation for the later study.

目的是使学生对计算机通信网络的基本原理有一个全面、系统的认识，掌握计算机网络的设计、分析和应用方法，为信息安全专业课的学习打下良好基础。

In order to meet the need of ZaoZhuang tax bureau, conforming to the international standard and the require of the Office Automation System and the Internet of Computer, applies the rule of safety countermeasures and the technical of internet computer. Determines the target and function; the position and quantity of systems are placed; forecasts the enlargeable of system in the future; appraises the reliability of system; gives the scheme of the Premises Distribution System and the Security System.

针对大楼的功能需求，依据国家和国际标准规范，以及对办公自动化系统和计算机网络的要求，综合运用电子信息技术、计算机网络技术、安全防范技术等确定各子系统的目标、功能；系统设备和用户设备安装位置、连接介质的种类、管线分布路由、信息插座的数量及其分布；预测未来数年扩充可能性；评估系统可靠性；提出综合布线的方案和安全防范系统设计方案。

The rapid development of computer application is propelled by the advancement of network and terminal technology.

1引言计算机网络和终端技术的进步推动了计算机应用的迅速发展，用户可以利用客户端获得网络上各种不同的分布式应用。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。