数据描述语言 meaning in English
data description language ddl
ddl data description language
Examples
- Data description language ddl
数据描述语言 - Space data and information transfer systems - data description language - east specification
航天数据和信息传送系统.数据描述语言. east规范 - It can be used as a language for defining data descriptive languages , such as markup grammars or vocabularies and interchange formats and messaging protocols
它可以作为定义数据描述语言的语言，例如标记语法或词汇、交换格式和通讯协议。 - As the development of the internet and the invention of the xml , now we always use xml to dexcribe information and transfor data , thus xml is a text - based markup language that is fast becoming the standard for data interchange on the web
随着internet的发展和xml的出现,通过xml来表达知识、传递数据已经成为网络数据传输的基本思想, xml也成为网络上通用的数据描述语言。 - Aiming at the shortcomings of manufacturing information description method - step / express while applied to internet , the paper constructed the product data markup language based - xml - schema which has the advantage of the unique expression and well - structure , and gave the mapping rules from express to xml and step part21 to xml . furthermore , the information integration solution of networked manufacturing based on xml / step / pdm is researched . multi - agent of distributed artificial intelligence is an effective approach to depict the characteristics of networked manufacturing system
Step是制造领域的产品信息描述规范，而xml是面向互联网的数据交换标准，因而论文利用xml - schema无二义表达及结构性好等优点，使之与step优势互补，构造了基于xml - schema的制造产品数据描述语言( pdmlbased - xml - schema ) ，给出了express xml及steppart21 xml的映射规则，并对基于xml step pdm网络化制造信息集成方案进行了研究。