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Title:一种实现隧道钻孔方向精确控制的冲气钻固定装置及方法
Institution:岩土与地下工程研究院
Type of Patent:Invent
Application Number:2018100323415
Number of Inventors:3
Service Invention or Not:No
Application Date:2018-01-12
Publication Date:2019-04-19
Authorization Date:2019-04-19
Release Time:2019-04-15