blast furnace smelting

例句：

1. 1.The blast furnace smelting process is crucial for the production of steel.
   高炉冶炼过程对于钢铁生产至关重要。
2. 2. The blast furnace smelting technology has greatly improved in recent years.
   近年来，高炉冶炼技术已经大大提高了。
3. 3. The blast furnace smelting plant is located in the heart of the city.
   高炉冶炼厂位于市中心。