| |||
Luft- f |
de aer : 127 phrases in 14 subjects |
Agriculture | 9 |
Animal husbandry | 2 |
Chemistry | 6 |
Communications | 2 |
Construction | 85 |
Economy | 1 |
Entomology | 1 |
Environment | 2 |
Forestry | 7 |
Natural sciences | 1 |
Soil science | 2 |
Technology | 4 |
Transport | 4 |
Ventilation | 1 |