cold quenching

例句：

1. 1. 冷却
   过程
2. 1. The process of cold quenching is crucial for the quality of the steel.
   淬火过程对钢材的质量至关重要。
3. 2. During the cooling phase, the metal will undergo a series of physical and chemical changes.
   在冷却阶段，金属将经历一系列物理和化学变化。
4. 3. Quenching is an essential step in the manufacturing process of many metals and alloys.
   淬火是许多金属和合金制造过程中的关键环节。