pile driving engine

• 打桩机

pile driving engine的用法和样例：

例句

1. The marine pile driver has a hydraulic hammer.
   水下打桩机有一个液压锤。
2. His mind may turn to the stock market or he may become fascinated by the operation of a pile driver on his way to work.
   他的心思可能转向股票市场，或他在上班途中对打桩机的驾驶操作人了迷感到新奇不已。