三维配管设计
3D piping engineering design
套管内、外绝缘配合设计
coordination between inner and outer insulation
变量化装配设计
variational assembly design
车身概念装配设计
Auto-body conceptual assembly design
概念装配设计
conceptual assembly design
级配设计优化
gradation design optimization
界面匹配设计
Matching design of interface