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разведочная выработка stresses
gen.	descente f
mining.	descente de mine
tech.	chantier de recherches; fendue f; ouvrage de reconnaissance; rampe f (vleonilh)
разведочные выработки
mining.	travaux exploratifs; travaux d'exploration; travaux de prospection; travaux de reconnaissance
tech.	travaux de recoupe

разведочная выработка: 8 phrases in 3 subjects

Geology	1
Mining	3
Technology	4