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coal hydrogenation; coal liquefaction | |||
hydrating coal gasification | |||
coal technology (The processing of coal to make gaseous and liquid fuels; Переработка угля в целях производства газообразных и жидких видов топлива) |
гидрогенизация угля : 5 phrases in 2 subjects |
Energy industry | 3 |
Technology | 2 |