 |
|
Water Control : 54 phrases in 18 subjects |
| Automated equipment | 2 |
| Chemistry | 3 |
| Coal | 1 |
| Construction | 2 |
| Environment | 9 |
| Finances | 1 |
| General | 5 |
| Geology | 1 |
| Law | 1 |
| Life sciences | 1 |
| Mechanic engineering | 1 |
| Name of organization | 1 |
| Natural resourses and wildlife conservation | 14 |
| Natural sciences | 2 |
| Technology | 1 |
| Transport | 1 |
| United Nations | 1 |
| Water resources | 7 |