Impact of Micro-NPR bolt on the mining of deep-buried phosphate via the room-and-pillar method
Autor: | Guo, Longji, Tao, Zhigang, He, Manchao, Coli, Massimo |
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Zdroj: | In Tunnelling and Underground Space Technology incorporating Trenchless Technology Research October 2023 140 |
Databáze: | ScienceDirect |
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