Tocco hardening

例句：

1. 1.The process of Tocco hardening is crucial for the durability of the material.
   托克硬化过程对于材料的耐用性至关重要。
2. 2.In the field of materials science, Tocco hardening has been extensively studied.
   在材料科学领域，托克硬化研究已经非常广泛。
3. 3. The researchers found that the addition of certain elements could enhance the Tocco hardening process.
   研究人员发现，某些元素的添加可以增强托克硬化过程。