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| coal The natural, rocklike, brown to black derivative of forest-type plant material, usually accumulated in peat beds and progressively compressed and indurated until it is finally altered in to graphite-like material | |||
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ogle : 25 фраз в 6 тематиках |
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| Окружающая среда | 7 |
| Политика | 1 |
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| Энергетика | 2 |