ICRH

例句：

1. 1. The steel industry relies heavily on iron and carbon.
   钢铁工业严重依赖铁和碳。
2. 2. The hydrogen fuel cell is a promising technology for powering vehicles.
   氢燃料电池是一种有前途的技术，用于为车辆提供动力。
3. 3. The chemical process involves the use of iron, carbon, and hydrogen.
   化学过程涉及使用铁、碳和氢。