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Aufschlussbohrung f
coal.	sondage de reconnaissance
coal., el.	forage d'exploration; forage de reconnaissance
met.	trou de recherche; sondage de recherche; forage de recherche
oil	forage sauvage
Aufschlußbohrung f
construct.	sondage de reconnaissance; sondage de recherche

Aufschlussbohrung: 3 phrases in 2 subjects

Chemistry	2
Metallurgy	1