electric arc furnace

例句：

1. 1.The electric arc furnace is a key equipment in the steelmaking process.
   电弧炉是钢铁生产过程中的关键设备。
2. 2.The electric arc furnace is used to produce high-quality steel.
   电弧炉用于生产高质量的钢材。
3. 3. The electric arc furnace is an important tool for metallurgical research.
   电弧炉是冶金研究的重要工具。