matériau originel,matériau parental /SCIENCE,ENG-ELECTRICAL/
[DE] Ursprungsmaterial
[EN] parent material
[FR] matériau originel; matériau parental
matériau d'origine,matériau originel /SCIENCE/
[DE] Ausgangsmaterial
[EN] parent material
[FR] matériau d' origine; matériau originel