机译:利用表层钻孔提高保护煤层卸压瓦斯质量的方法及其工业应用
School of Safety Engineering,China University of Mining & Technology,Xuzhou 221116,China;
State Key Laboratory of Coal Resources and Mine Safety,China University of Mining & Technology,Beijing 100083,China;
School of Safety Engineering,China University of Mining & Technology,Xuzhou 221116,China;
School of Safety Engineering,China University of Mining & Technology,Xuzhou 221116,China;
School of Safety Engineering,China University of Mining & Technology,Xuzhou 221116,China;