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Analyzing the safety requirements of ventilation in mysterious mines with high risks in the mining sectors
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Premium Content
PORTLASH XAVFI MAVIUD SHAXTALARDAGI XAVFSIZLIK TALABLARINING TAHLILI
15,000so'm
Betlar soni
22 taFayl hajmi
61.61 KBFayl turi
.docx
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Sanobar Axmedova
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