pile hammer

例句：

1. 1. The pile hammer is used to compact soil and remove rocks.
   堆叠锤用于压实土壤和移除岩石。
2. 2. The construction workers were using a pile hammer to break through the concrete wall.
   建筑工人正在使用堆叠锤来打破混凝土墙。
3. 3.The engineer carefully placed the pile hammer in the center of the hole to ensure stability.
   工程师小心翼翼地将堆叠锤放在洞中心以确保稳定性。