Mahsulot tavsifi
This course covers the theoretical fundamentals of mine and mining aerology, focusing on selecting drill bit diameters when cutting large-faced rock faces
#шахта#рудниклар#аэрология
Muallif
Mevali HududTasdiqlangan muallif
- Hujjatlari
- 9 673
- Sotilgan
- 260
