Patents
- liuqingquan , liujingjing,lvbiao,anhaoxue,chengyuanping,chupeng,luyanfei,Coal seam gas parameter detection device and construction method based on dead space pressure conversion
- liuqingquan , 卢彦飞,褚鹏,chengyuanping,郝从猛,王德洋,A invention relates to a device and method for measuring the shape of the hydraulic flushing hole in a coal seam
- liuqingquan , chupeng,luyanfei,chengyuanping,liuyuanyuan,xialei,zhengsiwen,A quantitative evaluation method for permeability enhancement effect of hydraulic flushing with cross-measure boreholes
- lvbiao , liuqingquan,maxiaohang,anhaoxue,yufeiyang,miaohang,Gas content measuring device used in an underground coal mine
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