three furnace process

例句：

1. 1.The three-furnace process is a crucial step in the steelmaking process.
   三炉炼钢工艺是钢铁生产过程中至关重要的一步。
2. 2.The three-furnace process has been optimized to improve efficiency.
   已经对三炉炼钢工艺进行了优化以提高效率。
3. 3.The three-furnace process is widely used in the steel industry.
   三炉炼钢工艺在钢铁工业中被广泛应用。