集成分层次的零件信息模型、装配模型及机构模型，建立面向数字化样机的产品信息基本模型表达。
A basic information model for digital mock-up is produced by integration of hierarchical part information, assembly model and mechanism model.
通过功能符号形式化描述建立分层次的机构概念运动模型，实现对计算机辅助概念运动设计的支持。
By setting up a hierarchical mechanism motion model for conceptual design through the formal description of function symbol we provide a solid support to the computer aided conceptual motion design.
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