“data federation tool”的概念、定义、翻译、参考文献-科学参考

单词	data federation tool
释义	data federation tool Encyclopedia 理学数据库中间件释 data federation tool数据联邦工具通过包装器隐藏每个异构数据源自身特性，为异构数据源提供抽象的数据接口，可看作是一个虚拟的联邦数据库，或具有数据库管理系统（DBMS）功能的中间件软件，应用包装器访问异构数据源。
随便看	preservation and restoration of collection stone cultural relics Preservation and Restoration of Oil Paintings preservation class preservation disaster plan Preservation Handbook for Cultural Relics preservation librarian preservation of agricultural products preservation of angles preservation of aquatic products preservation of area preservation of cadaver preservation of Chinese calligraphies and paintings Preservation of Cultural Relics preservation of genetic material in fishery biology Preservation of historic center in Antwerp Preservation of historic center in Bruges Preservation of Historic Centre of Kraków preservation of leather collection preservation of length preservation of limits preservation of liquid preparations preservation of metallic collection preservation of obligation preservation of oil paintings Preservation of Old and New Towns of Edinburgh

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。