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17 Dec 2023

7m

令坚硬岩石“俯首称臣”！这台隧道开挖装备的工作效率是传统钻爆法的五倍！它自重2500吨功率7600千瓦它由电机驱动在液压装置推动下对岩石实施破碎《重装出川》EP04【CCTV纪录】

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令坚硬岩石“俯首称臣”！这台隧道开挖装备的工作效率是传统钻爆法的五倍！它自重2500吨功率7600千瓦它由电机驱动在液压装置推动下对岩石实施破碎《重装出川》EP04【CCTV纪录】