[IfcFacetedBrepWithVoids.Voids property 空隙 public IfcCollection<IfcClosedShell> Voids { get; set; } 也可以看看 class IfcCollection<T> class IfcClosedShell class IfcFacetedBrepWithVoids 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]
