 |
| depurazione: 201 phrase in 21 subjects |
| Agriculture | 7 |
| Chemistry | 23 |
| Coal | 2 |
| Construction | 3 |
| Earth sciences | 2 |
| Ecology | 4 |
| Economy | 1 |
| Environment | 63 |
| Fish farming pisciculture | 1 |
| General | 24 |
| Industry | 4 |
| Labor law | 22 |
| Law | 6 |
| Mechanic engineering | 8 |
| Medical | 3 |
| Metallurgy | 9 |
| Natural sciences | 2 |
| Patents | 5 |
| Research and development | 1 |
| Social science | 2 |
| Transport | 9 |