IFC 4.3.2.20260714 (IFC4X3_ADD2) under development

4.1.3.1.4 System Element Attributes（系统构件特性）

下图展示了应用此概念时使用的通用类和关系。 此外，概念可能对常见或标准化的行业实践和场景具有特殊意义。对于这些特定的使用场景，下表展示了用户可采用的推荐通用使用模式列表。

<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSystem.htm'>IfcSystem</a> IfcSystem 1. GlobalId [1:1] 2. OwnerHistory [0:1] Name 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?]      IsGroupedBy [0:?]      ReferencedInStructures [0:?]      ServicesBuildings [0:1]      ServicesFacilities [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLabel.htm'>IfcLabel</a> IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSystem.htm'>IfcSystem</a>:Name1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLabel.htm'>IfcLabel</a>:IfcLabel0
图 4.1.3.1.4.A

通用用法

ApplicableEntity
IfcSystem
表 4.1.3.1.4.B

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