épuration: 179 phrases in 18 subjects |
Agriculture | 4 |
Chemistry | 15 |
Coal | 3 |
Earth sciences | 4 |
Ecology | 4 |
Economy | 1 |
Environment | 111 |
General | 8 |
Human rights activism | 1 |
Industry | 3 |
Information technology | 1 |
Life sciences | 3 |
Medical | 12 |
Metallurgy | 1 |
Natural sciences | 1 |
Politics | 1 |
Technology | 1 |
Transport | 5 |