[IfcConstraintRelationship.RelatedConstraints property RelatedConstraints public IfcCollection<IfcConstraint> RelatedConstraints { get; set; } 也可以看看 class IfcCollection<T> class IfcConstraint class IfcConstraintRelationship 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]