pile driver造句

1、Design of pile driver with cam style
凸轮式打桩机的设计

2、The marine pile driver has a hydraulic hammer
水下打桩机有一个液压锤。

3、The weight that drops in a pile driver or steam hammer
撞键打舂机或汽棰内落下的重物

4、The weight that drops in a pile driver or steam hammer.
撞键打舂机或汽棰内落下的重物

pile driver翻译