ㄍㄨˇㄈㄥfēngㄌㄨˊ

  1. 金屬爐子鼓風機下部助燃鐵礦石灰石焦炭加入焦炭生成一氧化碳以還氧化鐵液體冷卻鑄鐵生鐵

a blast furnace (in modern times)​, a draft assisted furnace for smelting metals