| 名称 | ifc projection element |
| 领域 | IFCRAIL |
| URL | http://cbims.org.cn/allscope/IFCRAIL-IfcProjectionElement |
| 分类编码 | IfcProjectionElement |
| 父类 | ifc rootifc productifc feature element additionifc objectifc feature elementifc elementifc object definition |
| 子类 | |
| 等价类 | IFCROAD:ifc projection element |