[IfcStructuralLoadGroup.Coefficient property 系数 public IfcRatioMeasure Coefficient { get; set; } 也可以看看 class IfcRatioMeasure class IfcStructuralLoadGroup 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]
