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由1958到1963年,库兹巴斯矿井用杆式支柱加固了准备和清理坑道,共长210千米,其中62%以上为木质杆柱。
From 1958 to 1963, the Kuzwaspall mine was reinforced with pillars to prepare and clean the tunnel, a total length of 210 kilometers, of which 62% were wooden poles.