[IfcDuctSegmentType.PredefinedType property PredefinedType public IfcDuctSegmentTypeEnum PredefinedType { get; set; } 也可以看看 enum IfcDuctSegmentTypeEnum class IfcDuctSegmentType 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]
