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通过对四柱支撑掩护式低位放顶煤液压支架的几种不同四连杆结构形式的探讨,为放顶煤液压支架的选型与设计提供理论参考。
Through the discussion of several different four-bar structure forms of the four-post supporting low-top hydraulic caving support, it provides a theoretical reference for the selection and design of hydraulic caving support.