Firstly, the concepts of dimensional element ( DE) and dimensional element-chain ( DEC) are defined, and a geometric tolerancing model expressed by DE and its semantic mapping are also given.
首先定义尺素和尺素链等概念,并在此基础上建立尺寸公差的尺素表示模型及其语义映射;
The preliminary application shows that the DECA method is valid for assembly dimension-chain analysis.
结果表明,尺素链分析可以达到传统装配尺寸链分析的目的。
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