采煤

• Abnormal gas activity and its control in a coal face
  一个采煤工作面的异常瓦斯活动及其治理
• Contact stress analysis of tractive mechanism of shearer
  采煤机牵引行走机构的接触应力分析
• Theory and practice of integrated coal mining and gas extraction
  采煤采气一体化理论与实践
• Application of advanced mining in thin seam
  薄煤层前进式采煤法的应用
• Virtual prototype simulation on shearer regulating system
  采煤机摇臂虚拟样机及其动力学分析
• Shearer - specification of workshop inspection
  滚筒采煤机.出厂检验规范
• Belt conveyors for underground coalmining - heavy construction
  井下采煤皮带输送机.重型支架
• These men work underground for 6 hours a day , mining for coal
  这些人每天在地下采煤6小时。
• Pollution control of mg - 375 750 type shearer ' s hydraulic system
  750采煤机液压系统的污染控制
• Research on the mining technology at coal and gas outburst seam
  煤与瓦斯突出煤层采煤技术研究