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Huainan coalfield is rich in coalbed methane resources and has large - scale coalmine methane drainage.
淮南煤田煤层气资源丰富,煤层气抽采具备较大规模.
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High position bores and elevation bores methane drainage technique can prevent gas problem successfully.
采用高位钻孔和仰角钻孔抽放瓦斯技术,有效地防止了瓦斯超限.
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