[IfcSectionReinforcementProperties.SectionDefinition property 截面定义 public IfcSectionProperties SectionDefinition { get; set; } 也可以看看 class IfcSectionProperties class IfcSectionReinforcementProperties 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]
