应用效果表明了煤层气抽采钻孔封孔技术优化，能达到提高煤层气抽采浓度和抽采量的目的。
The results of optimization of sealing technology for CMM boreholes have indicated that aim of improving the concentration and quan…
应用效果表明了煤层气抽采钻孔封孔技术优化，能达到提高煤层气抽采浓度和抽采量的目的。
The results of optimization of sealing technology for CMM boreholes have indicated that aim of improving the concentration and quan…
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