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| combustibile solido | |||
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| combustibili solidi | |||
| solid fuel: 36 phrases in 14 subjects |
| Agriculture | 1 |
| Astronomy | 1 |
| Coal | 4 |
| Electronics | 2 |
| Energy industry | 11 |
| Environment | 2 |
| General | 4 |
| Life sciences | 1 |
| Metallurgy | 1 |
| Natural sciences | 2 |
| Patents | 2 |
| Research and development | 2 |
| Statistics | 2 |
| Transport | 1 |