Terms for subject Coal containing open

Dutch	English
ontginning in open groevebovengronds	mining open cast
ontginning in open groeve	surface working
ontginning in open groeve	openwork
open-gat-putafwerking	open-hole completion
open kleigroeve	open-cast working
winning in open lucht	surface working
winning in open lucht	mining open cast
winning in open lucht	openwork