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User 19019 ta hujjat sotilgan
Tavsif
A system for extracting thick layers of mass rock using a burr with a close tip, mainly used for opening cavities obtained from mining, based on the influence of the weight force of the rock on the rope
Hujjat haqida
- Kategoriya
- Taqdimotlar | Jismoniy tarbiya
- Format
- PPT
- Hajmi
- 23 bet
- Fayl hajmi
- 1.59 MB
- Muallif
- User 1901
- Qo'shilgan
- 13.02.2026









