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| угольный брикет | |||
| формованный уголь | |||
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型煤 : 19 phrases in 7 subjects |
| Bioenergy | 1 |
| General | 11 |
| Geology | 3 |
| Metallurgy | 1 |
| Mining | 1 |
| Rail transport | 1 |
| Technology | 1 |
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