OHS open hearth steel

例句：

1. 1.The steel mill uses OHS to produce high-quality steel products.
   这家钢铁厂使用开放式炉钢生产高质量的钢材产品。
2. 2.Open-hearth steel is a popular choice for construction projects due to its strength and durability.
   由于其强度和耐久性，开放式炉钢是建筑项目的一个受欢迎的选择。
3. 3. The steel industry relies heavily on OHS as it provides the necessary carbon content for the steel to be strong and durable.
   钢铁行业严重依赖开放式炉钢，因为它为钢铁提供了必要的碳含量，使其既坚固又耐用。