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一种钻孔注浆封堵覆岩导水裂隙主通道的水害防治方法
- Release time:2020-10-30
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Affilication of Author(s):
物联网(感知矿山)研究中心Disigner of the Invention:
xujialinType of Patent:
国内State of Patent:
专利授权Application Number:
201710479391.3Number of Inventors:
2Service Invention or Not:
noApplication Date:
2017-06-22Authorization Date:
2019-09-03First Author:
jujinfeng
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