prepunched hole

例句：

1. 1.The engineer planned to prepunch a hole in the wall before installing the new window.
   工程师计划在安装新窗户之前在墙上预钻孔。
2. 2. Before starting the project, we need to prepunch a hole in the ground for the pipes.
   在开始这个项目之前，我们需要在地面上预钻孔以便管道通过。
3. 3. The drilling machine was used to prepunch a hole in the rock before extracting the stone.
   使用钻机在岩石中预钻孔以便提取石头。