pile driving
打桩
piling work
桩基施工
steel piling
钢桩
concrete piling
混凝土桩
pile foundation
桩基础
piling up
堆起
piling machine
打桩机；堆布机
pile driving
打桩
piling work
桩基施工
steel piling
钢桩
concrete piling
混凝土桩
pile foundation
桩基础
piling up
堆起
piling machine
打桩机；堆布机
探索常用高频词汇