一种粉末颗粒-高注浆压力封堵裂隙的瓦斯抽采钻孔封孔装置及方法
- School Sign:第一单位
- Disigner of the Invention:卢硕,李菁华,tangjun,黄梦牵,huguozhong,chengjianwei,陈帅,fangxinqiu,tuhongsheng
- Type of Patent:国内
- State of Patent:专利授权
- Application Number:201811439357.4
- Service Invention or Not:no
- Application Date:2018-11-29
- Authorization Date:2020-12-18
- First Author:Zanglei
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