direct-smelting ore — руда, идущая непосредственно в плавку
to test ore for gold — определять содержание золота в руде
zinc ore roasting plant — завод для обжига цинковой руды
this ore rocks slowly — такая руда промывается медленно
ore preparation characteristics — обогатимость руды
English-Russian big polytechnic dictionary. 2014.
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