spiral tamping machine

例句：

1. 1. The spiral tamping machine is used to compact soil before it is placed in the ground.
   螺旋压实机用于将土壤压实后放入地面。
2. 2. The spiral tamping machine is an essential tool for construction workers.
   螺旋压实机是建筑工人必备的工具。
3. 3. The spiral tamping machine can be used to create a smooth surface on the ground.
   螺旋压实机可以用来在地面上创造出平滑的表面。