Transform of Communication Network of Surface-underground in Changcun Coal Mine
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引用本文: | 董建明. 常村煤矿井上、下通信联网改造[J]. 工矿自动化, 2002, 28(3): 53-55. |
Citation: | DONG Jian-ming. Transform of Communication Network of Surface-underground in Changcun Coal Mine[J]. Industry and Mine Automation, 2002, 28(3): 53-55. |