preheat treatment machining

例句：

1. 1. Thepreheat treatment machining process iscrucial for the quality of the final product.
   预热处理加工过程对于最终产品的质量至关重要。
2. 2.During the preheat treatment machiningstage, the material is heated to acertain temperature before being machined.
   在预热处理加工阶段，材料在被加工之前被加热到一定温度。
3. 3. The precision ofthe preheat treatment machining iscritical for the success of the assembly process.
   预热处理加工的精度对于装配过程的成功至关重要。