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(Metallurgy) (esp formerly) a steel-making reverbatory furnace in which pig iron and scrap are contained in a shallow hearth and heated by producer gas
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|Noun||1.||open-hearth furnace - a furnace for making steel in which the steel is placed on a shallow hearth and flames of burning gas and hot air play over it|
furnace - an enclosed chamber in which heat is produced to heat buildings, destroy refuse, smelt or refine ores, etc.
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