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