... piling 打桩 piling hole 打桩筒 pilot hole 探孔 ...
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Pile driving speed, the average 3 minutes can realize piling 6 meters deep, namely a hole three minutes to play.
打桩速度快，平均3分钟可实现打桩6米深，即3分钟可打一个孔。
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Metal sheet piling was placed around the hole to stop the soil from sliding, and it was filled.
NPR: Work Continues, Future Uncertain For Sinkhole Site
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