step-cut milling

例句：

1. 1.The step-cut milling process is crucial for the precision of the machined parts.
   步进式铣削过程对于机加工零件的精度至关重要。
2. 2. In this step-cut milling method, the cutting tool moves in a straight line across the workpiece.
   在这个步进式铣削方法中，切削工具沿着工件直线移动。
3. 3.The use of step-cut milling technology has greatly improved the efficiency and accuracy of machining operations.
   使用步进式铣削技术大大提高了机械加工作业的效率和准确性。