صفحه افقی
preferred label: horizontal plane @en
type: Concept
related: گروه Cnh

گروه Cnh
related: صفحه افقی
broader: گروه Cn
preferred label: Cnh group @en
type: Concept

گروه Cn
preferred label: Cn group @en
type: Concept
narrower: گروه Cnh