The former is used to describe feature constraint relation of a component and the later is used to describe assembly constraint relations of an assembly.
特征约束关系图表示零件中特征之间的约束关系;装配约束关系图表达装配体中零件之间的约束关系。
参考来源 - 基于图论的装配公差建模方法·2,447,543篇论文数据，部分数据来源于NoteExpress
According to the complex mechanical parts with multiple position relations, we proposed a method of parametric design based on assembly constraint relations.
首先分析了零组件的一般参数化设计的常见方法，针对存在的定位关系复杂组件，提出了一种基于装配关系的参数化设计方法。
The author applies constraint relations, projective method and matrix operations to the displacement analyses of spatial RSCR, RRSRR, RRRSR, RERRR, and RRERR mechanisms.
本文运用了约束关系式、投影和矩阵运算等方法对空间RSCR、RRSRR、RRRSR、RERRR和RRERR等机构的位移进行分析。
Third two adaptive methods of regularized factors are put forward based on the relations of data object function, model constraint object function, and regularized factor.
根据数据目标函数、模型约束目标函数和正则化因子之间的关系，提出了两种正则化因子自适应调节方法。
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