The paper introduces a kind of method to quick restore the single hydraulic prop cylinder by non-thinning wall way. The method has achieved good economic results in coal mines.

 
  • 介绍一种修复单体液压支柱油缸的方法;这是通过不减壁方式达到快速修复的方法;在煤矿中已取得了很好的经济效果.
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