... raise face 上山工祖 raise stope 上山工祖 rake 倾斜;耙子 ...
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stope raise 采场天井
raise e stope 上山工祖
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One time blasting of deep and medium holes was applied for the cut through raise and smooth surface blasting was used for the stope periphery and upper wall to ensure the stope safety.
采场切割井用中深孔一次爆破技术，采场周边及上盘则采用光面爆破技术，确保采场稳定。
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