|
separation : 65 phrases in 17 subjects |
| Chemistry | 5 |
| Coal | 1 |
| Communications | 1 |
| Cultural studies | 1 |
| Earth sciences | 13 |
| Ecology | 4 |
| Electronics | 14 |
| Environment | 4 |
| General | 4 |
| Industry | 3 |
| Information technology | 1 |
| Law | 6 |
| Mathematics | 1 |
| Medical | 4 |
| Natural sciences | 1 |
| Technology | 1 |
| Transport | 1 |