open-hearth furnace マイ単語帳に追加

平炉

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.

鉄鋼が浅い炉に置かれ、燃焼するガスと熱気の炎がその上に噴き出す製鋼のためのかまど。