Assembly constraint is the key information for supporting the assembly operation in distributed virtual environments.
装配约束是用来支持分布式虚拟环境中装配交互操作的关键信息。
Further, the paper study modular assembly design in the conceptual design step, and make assembly constraint modeling through constraint classification.
进一步研究了概念设计阶段的模块化装配设计，并在分析了装配约束分类的基础上实现装配约束建模。
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。
On this basis of geometry model and assembly model, this model integrates design parameters of the parts, constraint relationship of the parameters, force situation, mechanics characteristics.
该模型在产品几何模型和装配模型的基础上集成了零部件设计参数、参数之间的约束关系、受力状况、力学性能。
The virtual assembly environment (VAE) based on constraint recognition and mixed data model was presented.
基于约束识别和混合建模思想开发了一个虚拟装配系统（VAE）。
Then, the method of building the assembly model, recognizing mating constraint type based engineering knowledge, the algorithm of inferring relative freedom of mating feature are given.
并给出装配模型的建立过程及基于工程知识的装配配合约束类型识别方法、配合特征相对自由度推理算法。
In this paper, the following tasks have been accomplished: (1) Analyzing the constraint relation of parts to accomplish Oriented Functional Relationship Graph (OFRG) assembly modeling.
在本文中完成了以下的工作：(1)通过分析装配体中零部件之间的约束关系，建立装配体的有向功能关系图(OFRG)装配模型。
Based on PS theory, numerical contour matrix was presented to describe the machine constraints and process constraints of job shop PCB assembly optimization problem and formulate the constraint model.
基于多色集合理论，用数值围道矩阵描述了复杂PC B组装工艺流程中组装优化问题的设备资源约束和工艺约束，建立了PC B组装的优化约束模型。
The techniques commonly adopted internationally to resolve engineering claims include deliberative assembly for dispute, mediation, and arbitration with constraint force.
国际上通常采用的解决工程索赔的技术有争端审议会、调解和具有约束力的仲裁。
Then, the preferential constraint relation of sub-assembly is judged by matching assembly knowledge. The algorithm efficiency of generating assembly process APS-tree is improved.
然后，利用装配知识判定子装配体的装配优先约束关系，提高由装配结构树生成装配工艺APS树的效率。
In order to realize the information integrity of assembly modeling process, this paper proposes the hierarchical constraint assembly model which is based on assembly object properties.
为在装配建模过程中保证信息的完整性，提出基于装配对象属性的分层约束装配模型。
To exert the constraints, the assembly precedence is modeled and the precedence matrix and data file used to describe the precedence constraint are proposed.
提出了装配优先约束关系模型和约束关系模型的优先矩阵表达法与数据文件表达法。
By dividing the dimension of constraint system to some assembly elements the constraint system can be deminished, and the local character can be utilized.
在贵池地区，受特定的地质条件的控制，元素的分布分配、地球化学异常的展布和异常元素组合具有鲜明的特征。
By dividing the dimension of constraint system to some assembly elements the constraint system can be deminished, and the local character can be utilized.
在贵池地区，受特定的地质条件的控制，元素的分布分配、地球化学异常的展布和异常元素组合具有鲜明的特征。
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