[IfcPerformanceHistory.LifeCyclePhase property LifeCyclePhase public IfcLabel LifeCyclePhase { get; set; } 也可以看看 class IfcLabel class IfcPerformanceHistory 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]
