diamond core drill

例句：

1. 1.The diamond core drill is used to drill through solid rock.
   钻石钻头用于穿透坚硬的岩石。
2. 2. The diamond core drill was the most expensive tool in the workshop.
   钻石钻头是车间中最昂贵的工具。
3. 3.The diamond core drill is a precision tool that can be used for various tasks.
   钻石钻头是一种精密工具，可用于各种任务。