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буримость пород stresses
O&G, sakh.	drillability of rocks
буримость породы
geol.	drilling character of rock
mining.	drillability of rock
O&G	rock drillability index
O&G, oilfield.	rock drillability; drillability index; drillability of formation
oil	formation drillability index

буримость пород: 6 phrases in 4 subjects

Construction	1
Mining	1
Oil / petroleum	2
Sakhalin	2