[IfcWaterProperties.Hardness property 硬度 public IfcIonConcentrationMeasure Hardness { get; set; } 也可以看看 class IfcIonConcentrationMeasure class IfcWaterProperties 命名空间 Aspose.CAD.FileFormats.Ifc.IFC2X3.Entities 部件 Aspose.CAD]
