冶金家

例句：

1. 1. He is a renowned metallurgist who has made significant contributions to the field.
   他是一位著名的冶金学家，为该领域做出了重要贡献。
2. 2. The metallurgical engineer designed the new furnace, which significantly improved the efficiency of theproduction process.
   这位金属工程师设计了新的炉子，显著提高了生产过程的效率。
3. 3.In his latest research, the metallurgical engineer discovered a new way to extract rare metals from deep-sea sediments.
   在最近的研究中，这位金属工程师发现了一种从深海沉积物中提取稀有金属的新方法。