инновацион технология 2
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Yon stvolni burg‘ilash amaliyotida zenit burchagini tanlash hududida o‘rtacha qiyalanish raduisi metrni tashkil qiladi?
60-660 m
Yon stvolini burg‘ilashning nechta texnologik usuli ishlab chiqilgan?
5 ta
1- rayber bilan birlamchi teshig ochishda rayberning ish vaqti necha soat
7-9 soat
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