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| Kohlenformation | |||
| kohlenstoffhaltig | |||
| Steinkohlenformation; Karbon | |||
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carbonifero : 44 phrases in 7 subjects |
| Coal | 9 |
| Earth sciences | 5 |
| Environment | 1 |
| General | 3 |
| Metallurgy | 23 |
| Mining | 1 |
| Social science | 2 |
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