| |||
coal rank | |||
metamorphism intensity; rank; metamorphic grade | |||
degree of metamorphism; intensity of metamorphism |
степень метаморфизма: 14 phrases in 8 subjects |
Coal | 1 |
Energy industry | 2 |
Geology | 2 |
Makarov | 3 |
Metallurgy | 1 |
Mining | 1 |
Oil / petroleum | 1 |
Technology | 3 |