two-row elevator-digger

例句：

1. 1.The two-row elevator-digger was used to excavate the tunnel.
   双行电梯挖掘机被用来开挖隧道。
2. 2.The two-row elevator-digger was a critical piece of equipment for the construction project.
   双行电梯挖掘机是建设项目中的关键设备。
3. 3. The two-row elevator-digger was used to level the ground before the construction began.
   双行电梯挖掘机被用来在施工开始前平整地面。