Z-centre
preferred label: مرکز زد @fa
type: Concept
broader: F-centre

colour centre laser
preferred label: لیزر مرکز رنگ @fa
type: Concept
related: F-centre

M-centre
preferred label: مرکز ام @fa
type: Concept
broader: F-centre

F-centre
narrower: Z-centre
narrower: R-centre
narrower: M-centre
narrower: A-centre
type: Concept
preferred label: مرکز اف @fa
related: colour centre laser
scope note: trapped electron centres
broader: colour centre
alternative label: trapped electron centres

colour centre
preferred label: مرکز رنگ @fa
type: Concept
narrower: F-centre

R-centre
preferred label: مرکز آر @fa
type: Concept
broader: F-centre

A-centre
preferred label: مرکز آ @fa
type: Concept
broader: F-centre