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介绍了在煤质松软煤层中打钻孔,采用压风排粉并利用简易管内喷雾除尘系统及注水方法,并对效果的考察作了初步总结分析.
Introduced in the soft coal seam drilled holes, the use of air pressure powder discharge and the use of simple tube spray dust removal system and water injection method, and the results of the study made a preliminary summary analysis.