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разведочно-буровая скважина stresses
mining.	post hole; posthole well
разведочная буровая скважина
agric.	trial hole
construct.	test hole; trial bore hole; trial bore
el.	exploratory boring
geol.	prospect hole
oil	exploration drill hole; post hole; test borehole; exploration drilling well
road.wrk.	trial pit

разведочно-буровая скважина: 4 phrases in 2 subjects

Mining	2
Oil / petroleum	2