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