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一种精确延时预裂爆破强化抽采煤层瓦斯的方法

  • Release time:2020-10-30
  • Hits:
  • Affilication of Author(s): 

    矿业工程学院
  • Disigner of the Invention: 

    何文瑞,chendayong,xujialin,qinwei,朱怡然
  • Type of Patent: 

    国内
  • State of Patent: 

    专利授权
  • Application Number: 

    201510823716.6
  • Number of Inventors: 

    6
  • Service Invention or Not: 

    no
  • Application Date: 

    2015-11-24
  • Authorization Date: 

    2017-07-11
  • First Author: 

    huguozhong