| 名称 | ifc subgrade retaining structure section assembly |
| 领域 | IFCRAIL |
| URL | http://cbims.org.cn/allscope/IFCRAIL-IfcSubgradeRetainingStructureSectionAssembly |
| 分类编码 | IfcSubgradeRetainingStructureSectionAssembly |
| 父类 | ifc rootifc productifc civil elementifc civil element assemblyifc objectifc elementifc object definitionifc subgrade element assembly |
| 子类 | |
| 等价类 |