[IfcElementQuantity.Quantities property 数量 public IfcCollection<IfcPhysicalQuantity> Quantities { get; set; } 也可以看看 class IfcCollection<T> class IfcPhysicalQuantity class IfcElementQuantity 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]
