短語詞組短語drop pile -hammer 打樁的落錘Steam Pile -hammer 汽樁錘pile -driving hammer operator 打樁錘運營商hydraulic pile -driving hammer 液壓打樁錘Differential acting pile -hammer 差動樁錘pendulum pile -driven hammer 擺錘式打樁機differential -acting pile-hammer 復動打樁機single -acting pile-hammer 單動式打樁槌sheet -pile hammer 板樁錘 返回 pile-hammer