carbonisation : 50 phrases in 14 subjects |
Agriculture | 3 |
Analytical chemistry | 2 |
Chemistry | 13 |
Coal | 10 |
Electronics | 2 |
Environment | 2 |
General | 1 |
International trade | 1 |
Materials science | 1 |
Metallurgy | 5 |
Natural resourses and wildlife conservation | 5 |
Oil / petroleum | 1 |
Technology | 3 |
Transport | 1 |