分析了三维模型的特征结构，并按照特征表示规则构造模型特征树，最后把三维模型信息存储到XML文件中。
Firstly, analyzing feature structure of 3d model, then constructing feature tree of 3d model according to the regulation of feature denoted, finally, storing information of 3d model in XML document.
通过对3维模型特征二叉树进行相似性比较可以得到3维模型的相似性。
We can get the similarity among 3d models by matching the similarity among feature binary trees.
以特征信息结构树为基础，对贝叶斯网络模型进行推理，来获得客户需求的兴趣集中点。
Through reasoning Bayesian network model based on the features information construction tree of client requirement, the client requirement concentration is acquired.
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