dirt band,dirt parting /ENERGY-MINING/
[DE] Bergemittel; Zwischenmittel
[EN] dirt band; dirt parting
[FR] banc de stériles; bande de stérile; barre
dirt band,dirt parting,parting,shale band,stone band /SCIENCE,ENERGY-MINING/
[DE] Bergemittel
[EN] dirt band; dirt parting; parting; shale band; stone band
[FR] intercalaire; intercalation stérile; nerf stérile