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