In CBR model, two retrieval techniques, 'Inductive Indexing' and 'Nearest Neighbor', are then applied to retrieve relevant cases from the knowledge-based database.

在CBR模式，两种检索方法，“诱导式索引”与“近邻”，然后从以知识为基础的数据库检索有关案件。

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Having the constraints defined in the database allows DB2 to know relationships between tables and in some cases allows it to select better access plans based on that knowledge.

在数据库中定义约束使DB 2可以知道表之间的关系，并且在某些情况下允许DB 2根据这样的知识选择更好的访问计划。

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The knowledge-based CAD system has a huge demand for computing power and, as the database grows, it will get slower and less efficient.

以信息积累（认知性）为基础的CAD技术对计算机资源的需求与之俱增，并且随着数据库的扩大，诊断速度和效率也将随之下降。

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