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