Among them the automatic generation of dimension chain is the foundation of CAT and the described design function offers basis of tolerance analysis and tolerance synthesis.
其中尺寸链自动生成是进行计算机辅助公差设计的基础，它所描述的设计函数是进行公差分析和公差综合的依据。
In the fourth chapter, the automatic generation theory of the dimension chain based on assemble drawing is put forward.
第四章：提出了基于装配图约束关系的尺寸链自动生成原理。
In the fourth chapter, the automatic generation theory of the dimension chain based on assemble drawing is put forward.
第四章：提出了基于装配图约束关系的尺寸链自动生成原理。
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