He-4/He-3
preferred label: نسبت هلیم 4 به هلیم 3 @fa
type: Concept
broader: helium

helium
narrower: He-4/He-3
narrower: He-3
narrower: He-4
related: isotope
related: helium gas
related: U/He
related: He/He
type: Concept
broader: noble gas
preferred label: هلیم @fa

He-3
preferred label: هلیم 3 @fa
type: Concept
broader: helium

He-4
preferred label: هلیم 4 @fa
type: Concept
broader: helium

isotope
preferred label: ایزوتوپ @fa
type: Concept
related: helium

helium gas
preferred label: گاز هلیم @fa
type: Concept
related: helium

U/He
preferred label: نسبت اورانیم به هلیم @fa
type: Concept
related: helium

He/He
preferred label: نسبت هلیم به هلیم @fa
type: Concept
related: helium

noble gas
preferred label: گاز نجیب @fa
type: Concept
narrower: helium