blanking and piercing with combination tool

例句：

1. 1.The engineer used a punching machine to make the holes in the metal sheet.
   工程师使用打孔机在金属板上打出孔。
2. 2.The drilling process is crucial for the construction of the bridge.
   钻孔过程对于桥梁的建设至关重要。
3. 3.The punching tool was used to create intricate patterns on the fabric.
   打孔工具被用来在布料上创造出复杂的图案。