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cai kong qu yu jiao wa si ru he chu li
Pages: 58
Year: Issue:  1
Journal: Safety in Coal Mines

Keyword:  抽放瓦斯采煤工作面开采解放层煤炭安全采空区煤矿安全编辑部局部扇风机回风风流瓦斯浓度;
Abstract: <正> 《煤矿安全》编辑部:贵刊开辟“问答苑地”专栏,解答了某些技术问题,对促进煤炭安全生产起到了一定作用,很受读者欢迎。我局在开采解放层的过程中,采用了抽放瓦斯与加大采煤工作面的配风,但是还有个别采煤工作面回风风
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