Chinese translation for "公用数据网络"
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- common data network
public data network, pdn
Related Translations:
公用道路: public roadpublic way 公用发电厂: municipal power plantpublic power station
- Example Sentences:
| 1. | Public data network , pdn
公用数据网络 | | 2. | Dte information systems - interface between data terminal equipment and data circuit - terminating equipment for terminals operating in the packet mode and accessing a packet - switched public data network through switched access
信息系统.以分组模式和通过转换访问的分组转换公用数据网络运作的终端用的数据终端设备 | | 3. | The main research contents are as follovvs : after the analyzing of the process of making train diagram , according with its character , and take into account the trend of innovation , chooses the total solution based on the b / s architecture , 3 - tier operation distributed and 2 - tier data distributed to separate the data from operation and simplify the development and maintenance ; the e - r data model that is accord with the 3nf criterion is designed after analyzing the data structure of the train diagram system . emphasis on the permission security of the distributed system , take the view schema , coupled with the login authentication and permissions validation , to ensure the data accessing domination , and take the synchronization , error control , and restore capability to advance the data security ; on the basis of b / s solution architecture , after comparing the existing transportation technologies , b - isdn and adsl is selected as the major solution architecture based on the package - svvitched networks . furthermore , error control , firewall , and encryption techniques are introduced to prevent the hacker attack and ensure the networks safety
论文的主要研究内容包括：对目前我国列车运行图管理体制和编制流程进行详细分析，根据其“几上几下”的特点，并结合未来“网运分离”体制改革的变化预测，选择采用与之相适应的基于b s体系架构、三层业务分布、二层数据分布的整体方案，实现业务与数据的分离，降低开发与应用过程的复杂度和总体成本；对列车运行图系统的数据信息进行分析，设计符合3nf规范的数据e - r关系模型，并着重研究处于分布式系统中的列车运行图数据信息的访问权限和数据安全问题，提出以视图模式结合用户识别权限审定实现数据权限划分，以并发处理、容错技术、恢复技术提高系统的数据安全性；在基于b s架构的系统整体方案基础上，对当前多种数据传输技术进行分析比较，采用b - isdn为主干网、 adsl为接入端的基于公用数据网络分组交换技术的系统网络体系结构，并针对网络自身安全性和黑客攻击与侵入问题，详细讨论综合采用差错控制、防火墙、数据加密解密等技术手段提高系统的网络安全性能。 |
- Similar Words：
- "公用数据交换网" Chinese translation, "公用数据库" Chinese translation, "公用数据区" Chinese translation, "公用数据网" Chinese translation, "公用数据网 公用资料网路" Chinese translation, "公用数据系统" Chinese translation, "公用数据转接网" Chinese translation, "公用数据总线" Chinese translation, "公用数字蜂窝" Chinese translation, "公用数字交换能力" Chinese translation
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