surface working /INDUSTRY,INDUSTRY-METAL/
[DE] Flächenbearbeitung; Glätten
[EN] surface working
[FR] surfaçage
openwork,surface working /ENERGY-MINING/
[DE] Erzgewinnung im Tagebau; Tagebaubetrieb
[EN] openwork; surface working
[FR] exploitation à ciel ouvert; exploitation à découvert