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简述了下山施工中所遇到的困难、难题,并针对性的采取了下山台阶施工解决下山施工中所遇到的问题,进而提高下山施工的单进。
Describes the difficulties encountered in the downhill construction, problems, and targeted to take the downhill construction to solve the problems encountered in the construction down the mountain, and then improve the construction of a single down.