Verunreinigung : 91 phrases in 19 subjects |
Agriculture | 1 |
Antennas and waveguides | 2 |
Chemistry | 7 |
Earth sciences | 3 |
Economy | 10 |
Electronics | 2 |
Environment | 39 |
Forestry | 1 |
General | 2 |
Health care | 5 |
Industry | 5 |
Information technology | 2 |
Metallurgy | 4 |
Natural sciences | 1 |
Piezoelectric crystals | 1 |
Politics | 1 |
Technology | 1 |
Textile industry | 3 |
Transport | 1 |