pneumatic rock hammer

例句：

1. 1.The pneumatic rock hammer is an essential tool for drilling in hard rock.
   气动式岩石锤是钻打硬岩时必不可少的工具。
2. 2. The engineer used the pneumatic rock hammer to break through the concrete wall.
   工程师使用气动式岩石锤来打破混凝土墙。
3. 3. The pneumatic rock hammer was a revolutionary tool that made drilling easier and faster.
   气动式岩石锤是一种革命性的工具，使钻孔变得更加容易和快速。