This paper points out main disadvantages of mining technology being used in small collieries and discusses how to adopt long room system to reform the current technology of mining.

 
  • 论述了目前小煤矿开采技术存在的主要问题,探讨了采用长房式采煤法改革小煤矿开采的技术问题,此法适用于条件合适的小煤矿。
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