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mei guo wa si yan jiu zong jie
Author(s): 
Pages: 42-51
Year: Issue:  1
Journal: Safety in Coal Mines

Keyword:  瓦斯研究甲烷钻机工具设备研究计划障碍初始阶段煤层瓦斯瓦斯含量甲烷涌出;
Abstract: <正> 前言在初始阶段,甲烷控制的研究计划的主要领域是:甲烧抽放及通风。在这些领域中一开始遇到的障碍是缺乏适合于井下应用的工具设备。例如,当时的钻机大部
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