在此基础上，阐述协同数字化预装配技术的概念。
Then the concepts of collaborative digital pre-assembly techniques are presented.
协同虚拟装配是借助于网络对产品进行数字化预装配，它是敏捷化设计与制造的基础。
The cooperative virtual assembly is a kind of pre assembly for product in digital mode by network, and a basis of agile design and manufacture.
通过对数字化预装配方法的分析，提出了基于数字化产品设计模型的装配公差分析和优化方法。
The assembly tolerance analysis and optimization method based on digital product design model is put forward according to the analysis of digitalization preassembly method.
通过对数字化预装配方法的分析，提出了基于数字化产品设计模型的装配公差分析和优化方法。
The assembly tolerance analysis and optimization method based on digital product design model is put forward according to the analysis of digitalization preassembly method.
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