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