ferric carbide

例句：

1. 1.The steel industry uses this compound to improve its strength and hardness.
   钢铁工业使用这种化合物来提高其强度和硬度。
2. 2.The chemical reaction between the two compounds is a key step in the process.
   两种化合物之间的化学反应是该过程的关键步骤。
3. 3.The ferric carbide was used as an additive in the production of high-strength steel.
   铁碳化合物用作高强度钢材生产的添加剂。