[IfcPhysicalComplexQuantity.HasQuantities property HasQuantities public IfcCollection<IfcPhysicalQuantity> HasQuantities { get; set; } 也可以看看 class IfcCollection<T> class IfcPhysicalQuantity class IfcPhysicalComplexQuantity 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]