 |
| water control: 59 phrases in 12 subjects |
| Agriculture | 1 |
| Chemistry | 6 |
| Construction | 3 |
| Earth sciences | 1 |
| Environment | 7 |
| General | 6 |
| Life sciences | 2 |
| Measuring instruments | 3 |
| Mechanic engineering | 2 |
| Natural resourses and wildlife conservation | 19 |
| Technology | 8 |
| Transport | 1 |