[IfcRelAssociatesLibrary.RelatingLibrary property RelatingLibrary public IfcLibrarySelect RelatingLibrary { get; set; } 也可以看看 class IfcLibrarySelect class IfcRelAssociatesLibrary 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]
