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| Aufschlussbohrung f; Schürfbohrung f | |||
| Explorationsbohrung f | |||
| Bohrloch n; Bohrung f; Sonde f | |||
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ερευνητική γεώτρηση : 3 phrases in 2 subjects |
| Coal | 2 |
| Life sciences | 1 |
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