The cost of manufacturing a car is substantial and automobile manufacturers spend a significant amount of resources designing the appropriate line for the model of car they are trying to produce.

生产一辆汽车的成本非常可观，并且汽车制造商投入了大量的资源来为他们试图生产的汽车模型设计合适的生产线。

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Assembly model is the important base of digital product designing and manufacturing.

装配模型是支持数字化产品设计和制造的重要基础。

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Numerical control programming, analog simulation to point orientation program, manufacturing connected with main model designing and post processing's enactment is given in detail.

从数控编程、点位程序的模拟仿真，制造与主模型设计相联接、后置处理的设定等几个方面作了详细分析。

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