symmetry plane
preferred label: صفحه تقارن @fa
type: Concept
narrower: horizontal plane

Dnh group
preferred label: گروه Dnh @fa
type: Concept
related: horizontal plane

Cnh group
preferred label: گروه Cnh @fa
type: Concept
related: horizontal plane

horizontal plane
related: Cnh group
related: Dnh group
broader: symmetry plane
preferred label: صفحه افقی @fa
type: Concept