数据库知识表示 数据库知识表示
Database knowledge representation Database knowledge representation
以上为机器翻译结果，长、整句建议使用 人工翻译 。
粗糙集理论由于其独特的知识表示方法在数据预处理方面有着得天独厚的优势，同时也成为数据库中知识发现的有效手段。
Rough Sets theory has great superiority in Data Preprocessing because of its particular expression of knowledge, as well as it makes an effective means of knowledge Discovery in Database.
该系统采用框架知识表示法，将知识库与电网拓扑结构数据库均做成了外部数据库的形式进行存储。
The frame knowledge representation approach is applied to the system in which the knowledge base and topology structural database of power network are saved as external databases.
库卡表示，其工业知识产权，以及其客户和供应商数据可以通过协议得到保护，美的无法访问或移动数据库。
Kuka said that its industrial property rights and the data of its customers and suppliers would be protected by the agreement and that Midea would not be able to gain access to or move databases.
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