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控制覆岩裂隙与地表沉陷的掘采充平行作业的采煤方法
- Release time:2020-10-30
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Affilication of Author(s):
矿业工程学院Disigner of the Invention:
苗乾坤State of Patent:
专利授权Application Number:
2015345830Authorization number:
2015345830Number of Inventors:
2Service Invention or Not:
noApplication Date:
2015-05-12Authorization Date:
2017-02-09First Author:
Ma Liqiang
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