amalgam refining

例句：

1. 1. The process of amalgam refining is crucial for theproduction of high-quality steel.
   合金精炼过程对于生产高质量钢材至关重要。
2. 2. During theamalgam refining process,the impurities are removed from themolten metal.
   在合金精炼过程中，杂质从熔融金属中被去除。
3. 3.Amalgam refining is usedto improve the properties of metals andalloys.
   合金精炼用于改善金属和合金的性能。