local carburizing

例句：

1. 1.The process of local carburizing is used to harden the surface of a material.
   局部渗碳过程用于使材料表面硬化。
2. 2. The local carburizing technique has been shown to improve the wear resistance of steel.
   局部渗碳技术已被证明可以提高钢的耐磨性。
3. 3. In the automotive industry, local carburizing is commonly used to enhance the strength and durability of cast iron parts.
   在汽车工业中，局部渗碳常被用来增强铸铁部件的强度和耐用性。