boson system
preferred label: سامانه بوزون @fa
type: Concept
narrower: liquid helium-4

liquid helium-4
narrower: superfluid helium-4
type: Concept
scope note: helium I
preferred label: هلیم مایع-4 @fa
related: liquid helium sound propagation
alternative label: helium I
broader: boson system
broader: liquid helium

liquid helium sound propagation
preferred label: انتشار صوتی هلیم مایع @fa
type: Concept
related: liquid helium-4

liquid helium
preferred label: هلیم مایع @fa
type: Concept
narrower: liquid helium-4

superfluid helium-4
preferred label: هلیم ابرسیال-4 @fa
type: Concept
broader: liquid helium-4