[IfcStructuralLoadTemperature.DeltaTConstant property DeltaTConstant public IfcThermodynamicTemperatureMeasure DeltaTConstant { get; set; } 也可以看看 class IfcThermodynamicTemperatureMeasure class IfcStructuralLoadTemperature 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]