de heliumisotop (n)
― RelatedTo ⟶
Weight: 1.0
en helium Source: English Wiktionary
de heliumisotop (n)
― RelatedTo ⟶
Weight: 1.0
en isotope Source: English Wiktionary
de helion (n)
― RelatedTo ⟶
Weight: 1.0
de heliumisotop Source: German Wiktionary