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岩巷长距离上山掘进技术水平常以施工速度和效率来体现,而施工速度和效率的关键是运输问题,快速运输往往是先进施工技术的反映。在南三运上和轨上施工(运上:断面
The technical level of rock tunnel long-distance mountain excavation often manifests in terms of construction speed and efficiency. The crux of the construction speed and efficiency is the transportation problem. Rapid transportation is often a reflection of advanced construction technology. On the three southern transport and rail construction (shipped: section