footprint : 54 phrases in 14 subjects |
Climatology | 1 |
Communications | 7 |
Earth sciences | 1 |
Economy | 2 |
Electronics | 6 |
Environment | 14 |
Forestry | 1 |
General | 5 |
Medical | 2 |
Mineral products | 4 |
Research and development | 1 |
Transport | 5 |
United Nations | 4 |
Water resources | 1 |