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колонковый перфоратор stresses
bridg.constr.	column drill (бур, бурильный молоток)
el.	tunnel drill
geol.	hammer drifter; posting mounter drill
goldmin.	air-leg rock drill (MichaelBurov); bar mounted drill (MichaelBurov)
mining.	waughammer drill; post-mounted drill; stope drill
oil	drifter; drifter drill; drifter hammer; bar-rigged drifter; drifter-type machine; hammer drill; hammer plugger; posting mounted drill; post drill; column drill
tech.	core drill
transp.	columnal drill

колонковый перфоратор: 14 phrases in 5 subjects

General	2
Mining	2
Oil / petroleum	6
Oil and gas	2
Transport	2