[IfcCraneRailFShapeProfileDef.HeadDepth2 property HeadDepth2 public IfcPositiveLengthMeasure HeadDepth2 { get; set; } 也可以看看 class IfcPositiveLengthMeasure class IfcCraneRailFShapeProfileDef 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]