Through the analysis for the 22121 wind alley coal and gas power phenomenon, have summarized the cause of this time power phenomenon.
2
利用理论分析所得结论，对淮北朱庄矿3625较大采高工作面风巷进行巷旁支护设计及工程实践。
The results are applied successfully to the design and engineering practice in the airway of the high working face No. 3625 of Zhuzhuang Mine, Huaibei.
3
本实用新型还可以设置成节风窗、盲巷封闭。
The utility model can be set into an air-saving window or blind drift block.
点击反馈