这种数据库结构模型和图层与块相结合的地图管理方式易于扩展到其他领域。
The spatial database model and the new map management manner can extend to the other fields.
为使系统具有良好的通用性和可扩展性，提出了一种基于积件思想和网络数据库技术的教学系统结构模型，阐述了系统的结构特点。
In order to get the characteristics of common ability and expansibility, a structure model of network teaching system based on integral ware and web database are presented.
类桥CA结构模型满足了PK I体系大范围扩展的需求。
Similar bridge CA structure model satisfies the requirement of PKI system's extending.
此模型可以作为通用结构模型的扩展而引入G。
The parent layer component should be introduced as an extension of general architectural component into G.
此外还提出了与数据无关的多叉树层次结构模型的知识表示方法，它具有很强的表达能力并易于扩展。
The data-independent multi-branch tree hierarchical structure is proposed for the knowledge representation, because it has strong expressing ability and can be easily expanded.
此外还提出了与数据无关的多叉树层次结构模型的知识表示方法，它具有很强的表达能力并易于扩展。
The data-independent multi-branch tree hierarchical structure is proposed for the knowledge representation, because it has strong expressing ability and can be easily expanded.
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