pneumatic dredge pump

例句：

1. 1. The pneumatic dredge pump is used for deep water operations.
   气动挖泥泵用于深水作业。
2. 2.The pneumatic dredge pump is an essential tool for clearing riverbeds.
   气动挖泥泵是清理河床的必备工具。
3. 3. The pneumatic dredge pump has been proven to be more efficient than traditional methods.
   气动挖泥泵已被证明比传统方法更高效。