auger shaft

例句：

1. 1. The engineer used auger shafts to dig the tunnel.
   工程师使用钻杆来挖掘隧道。
2. 2. The drilling operation required auger shafts to be replaced frequently.
   钻井作业需要频繁更换钻杆。
3. 3.The construction crew had to remove the old auger shafts before installing the new ones.
   施工队在安装新钻杆之前必须拆除旧的钻杆。