rare metals : 41 phrases in 15 subjects |
Automated equipment | 1 |
Ecology | 1 |
Electrochemistry | 1 |
General | 2 |
Geology | 3 |
Gold mining | 4 |
Makarov | 10 |
Materials science | 1 |
Metallurgy | 3 |
Metrology | 1 |
Mining | 6 |
Nanotechnology | 3 |
Oil / petroleum | 1 |
Technology | 3 |
Thermal engineering | 1 |