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post | |||
block of coal; coal in solid; unconsumed coal (в подземном газогенераторе) | |||
block; solid coal; stook; coal block | |||
whole coal | |||
coal pillar; stander; virgin coal |
целик угля : 32 phrases in 6 subjects |
Gas processing plants | 10 |
Geology | 10 |
Makarov | 1 |
Mining | 9 |
Oil / petroleum | 1 |
Technology | 1 |