barrena: 155 phrases in 24 subjects |
Aeronautics | 6 |
Agriculture | 7 |
Aviation | 4 |
Aviation medicine | 1 |
Coal | 34 |
Communications | 2 |
Construction | 5 |
Drilling | 11 |
Earth sciences | 3 |
Forestry | 11 |
General | 2 |
Geology | 2 |
Industry | 1 |
Life sciences | 2 |
Measuring instruments | 1 |
Metallurgy | 8 |
Natural sciences | 3 |
Oil / petroleum | 1 |
Soil science | 3 |
Technology | 25 |
Transport | 18 |
United Nations | 1 |
Water resources | 2 |
Wood processing | 2 |