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>ANALYSIS ON VENTILATION SYSTEM IN HOLES C1 UNDERGROUND MINES OF PT. NUSA ALAM LESTARI, DESA SALAK, KECAMATAN TALAWI, SAWAHLUNTO, WEST SUMATERA
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ANALYSIS ON VENTILATION SYSTEM IN HOLES C1 UNDERGROUND MINES OF PT. NUSA ALAM LESTARI, DESA SALAK, KECAMATAN TALAWI, SAWAHLUNTO, WEST SUMATERA
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机译:PT孔C1地下矿井通风系统分析。 Nusa Alam Lestari,Salak Village,Talawi区,Sawahlunto,West Sumatra