pile-driving hammer

例句：

1. 1. The pile-driving hammer is used to break up the ground before building a foundation.
   推土机锤用于在建造地基之前打破地面。
2. 2.The pile-driving hammer was used to level the land for the construction project.
   推土机锤被用来平整土地，为建筑项目做准备。
3. 3. The pile-driving hammer was used to create a deep hole in the ground for the drainage system.
   推土机锤被用来在地面上打一个深洞，以便于排水系统的工作。