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一种坚硬岩体强度弱化的掘进方法
- Release time:2020-10-30
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Affilication of Author(s):
机电工程学院Disigner of the Invention:
杜长龙,张农,LIU Songyong,孟德光,崔玉明,李洪盛Type of Patent:
国内State of Patent:
专利授权Application Number:
201810438485.0Number of Inventors:
7Service Invention or Not:
noApplication Date:
2018-05-09Authorization Date:
2019-07-02First Author:
jianghongxiang
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