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一种沿空小断面留巷开采方法
- Release time:2020-10-30
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Affilication of Author(s):
矿业工程学院Disigner of the Invention:
Ma Liqiang,于斌,zhangwei,王飞,杜勋Type of Patent:
国内State of Patent:
专利授权Application Number:
201410201917.8Number of Inventors:
6Service Invention or Not:
noApplication Date:
2014-05-13Authorization Date:
2016-04-20First Author:
金志远
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