source shield造句

virtual ontology data source shields the detail of low-leveldatasource, andprovides aconsistentaccessinterfacefortopperusers . wediscussedthemethodof transforming relation database to virtual ontology data source ( which is also called databasedeep annotation ) . we designed the database schema description language and mapping rulesdescriptionlanguage, andgavearesolventforrelationmodeling . at last, we bring out a framework of general natural language interface, and implement adatabasenaturallanguageinterface . makinguseofaspecificexample, wemadeanevaluationofthissystem
我们具体讨论了从关系数据库系统到虚拟本体数据源的转换(也称为数据库深度注解),定义了关系数据库的结构知识描述语言和通用的映射规则描述语言,给出了多元关系建模的解决方案。
It's difficult to find source shield in a sentence. 用source shield造句挺难的