English | Greek |
air stripping | αερισμός με ώθηση αέρα |
ammonia stripping | εκρόφηση αμμωνίας με αέρα |
permanent strip | μόνιμος ζώνη |
sludge stripping machine | ξέστρο λάσπης |
sludge stripping machine | ξέστρο απομάκρυνσης της λάσπης |
strip mining Superficial mining, in which the valuable rock is exposed by removal of overburden. Coal, numerous nonmetals and metalliferous ores (iron and copper) are worked in this way. Sinonym: strip mining, opencast mining, openpit mining | επιφανειακή εξόρυξη |