high shaft furnace

例句：

1. 1. The high shaft furnace isused to produce iron ore.
   高炉用于生产铁矿石。
2. 2. The blast furnace is akey component of the ironmaking process.
   高炉是炼铁过程的关键组成部分。
3. 3. Theblast stove is an alternative to the traditionalopen-hearth furnace.
   喷煤嘴是一种替代传统开放式转炉炉的装置。