具体研究包括：构建了以2000个数控机床造型设计案例为基础的案例库，并提出了规范的案例描述模式；
The concrete content involves: construction of the case-base that comprises 2000 cases of NC machine tools form design, and putting forward a further standardized case description mode;
在对案例库进行聚类分析的基础上，讨论了新案例库的构建问题。
Followed the clustering analysis for case base, the construction of a new base is discussed.
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