系统功能

The overall design,system structure and functions,database structrues and software design are introduced.

介绍了浙江电能质量管理系统的整体设计构想、系统结构、功能和数据库结构以及系统的软件设计。

MQM ball milling machine use automatic control system, it has the automatically temperature control and self-cycle filter system, as well as deaeration, deodorizing, dehumidity and breed out steam void etc.

MQM球磨机采用全自动控制系统，具有自动温控系统和巧克力自身循环过滤系统，并具有脱气、脱臭、脱水、排出气泡等多种功能。

The paper based on solving the evaluation of land using problem, by anglicizing the deficiency of GISs space decision and the merit of EGIS.

本文从解决农业用地评价中的空间决策问题入手，通过分析传统GIS系统技术方法在解决空间规划决策中的不足，从GIS系统技术方法的应用角度出发，就一段时期以来GIS系统技术的功能结构方面的发展变化趋向，进行了详细的阐述。

Focused ion optical column includes focusing system, deflection system, aligning system and mass separator.

离子束光柱体包括聚焦系统、偏转扫描系统、对中调整系统以及扩展功能的质量分析器等。

First the paper discusses the background and composition of the function of the system demand of the information management system for the students.

首先讨论了学生信息管理系统的背景和构成系统的功能需求再论述了学生信息管理系统的设计与实现，。

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。

According to communication system frame of passing SIAS, this article designs a three-layer configuration to communication system, discusser every layer's function.

参考目前变电站综合自动化的通信系统构成，从总体上把该通信系统构成设计为三层，讨论了每一层的功能；详细介绍了通信系统的核心――通信管理机的设计，重点说明了IEC870-5-103规约在其中的应用过程，讨论了在应用中对所实际问题的处理办法。

PDM provide the way that manages product data by static store and dynamic processing. Product is the key data in PDM, all of other entity data and function set are carried about product. Product described and manage product life cycle from design to over. PDM provide basis service for product management, include details and documents.

PDM系统是企业产品数据管理系统的简称，提供了对企业的产品数据进行静态的存储管理和动态的过程管理的方法，产品是PDM系统的核心数据，所有其他实体数据和功能集和都是围绕产品而展开的，对产品加以描述的同时，对产品从设计到报废作全生命周期管理。

On the basis of analyzing the elementary structure and function of mechanical system and hydraulic controlled system of AT, carried out the failure analysis of AT.

在对自动变速器机械系统与液压控制系统的基本结构与功能进行系统分析的基础上，探讨研究了失效分析方法。

According to the analysis of the system's requirements we have got the data requirements and the elementary function requirements. Based on this, we set up a sample framework solution for the application of combination of GPS and GPRS.

在此基础上对系统进行需求分析，得出了本系统的数据需求和初步的功能需求，同时提出了结合GPS定位与GPRS通信的电子导游系统的解决方案。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。