YouTube27 Jul 2022
9m

6000根钢管桩是怎样打入海床的?《中国现代奇迹》第2集【CCTV纪录】

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CCTV纪录

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6000根钢管桩是怎样打入海床的?《中国现代奇迹》第2集【CCTV纪录】