类型树也包含用于定义 ISO8583 模型（定义每个字段的长度）的信息。
The type tree also has information contained within it that defines the ISO8583 model (how long each field is defined to be).
至今已经提出了决策树的很多算法，通过分析已知的分类信息得到一个预测模型。
So far, there are many algorithms have been given and we can gain a prediction model by analyzed known catalog information.
装配模型的结构体现了自项向下的设计理念，实现了装配树层次信息、配合信息和零件信息的分别管理。
The model embodied the top-down design idea, achieved the respective management of assembly architecture information, mate information and parts information.
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