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открытая горная выработка stresses
gen.	opencast mining
construct.	open excavation
geol.	open pit; open-cut mining; open-cut; open-pit mining; open-pit working; opencast workings
Gruzovik, mining.	opencast mining
Makarov.	glory hole
mining.	open working; opencast
tech.	excavation; open-cast mining; open cut
открытые горные выработки
goldmin.	open-pit workings (Leonid Dzhepko)
mining.	surface workings