Product assembly model is a product model that supports designs of concept, part and assembly, and illustrates assemblyprocedure of giver product.
产品装配模型是支持产品从概念设计、零件设计，到装配设计的产品模型，描述了给定产品的装配过程。
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The paper provides some installation direction, through the introduction of the assemblyprocedure and experience of the CNC roll grinding machine equipments.