Use the furnace to open the furnace menu. Place a furnace fuel in the lower slot and the source material in the upper slot. The furnace will slowly use its fuel to smelt the item. The result will be placed into the output slot at the right side.=使用熔爐打開爐子菜單。將熔爐燃料放在下槽,將源材料放在上槽。熔爐將慢慢地使用它的燃料來熔煉或烹飪物品。其結果將被放入右側的輸出槽中。