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| kraterbildning med hjälp av kula | |||
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abrasione : 18 phrases in 10 subjects |
| Chemistry | 1 |
| Coal | 1 |
| Industry | 4 |
| Information technology | 3 |
| Materials science | 1 |
| Mechanic engineering | 1 |
| Metallurgy | 1 |
| Natural sciences | 1 |
| Technology | 2 |
| Transport | 3 |
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