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 cooperative virtual assembly is a kind of pre assembly for product in digital mode by network, and a basis of agile design and manufacture.
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。
This paper introduces hardware constitution and software design of digital clock controlled by 8031 single-chip microcomputer, and its assembly language program is given.
介绍了用8031单片机控制的电脑数字钟的硬件结构与软件设计，给出了汇编语言源程序。
This paper introduces hardware constitution and software design of digital clock controlled by 8031 single-chip microcomputer, and its assembly language program is given.
介绍了用8031单片机控制的电脑数字钟的硬件结构与软件设计，给出了汇编语言源程序。
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