 |
| boue: 259 phrases in 19 subjects |
| Agriculture | 4 |
| Chemistry | 4 |
| Coal | 3 |
| Construction | 3 |
| Earth sciences | 7 |
| Economy | 1 |
| Energy industry | 5 |
| Environment | 171 |
| General | 9 |
| Health care | 3 |
| Industry | 8 |
| Life sciences | 12 |
| Mechanic engineering | 1 |
| Medical | 6 |
| Metallurgy | 9 |
| Natural sciences | 1 |
| Oil / petroleum | 5 |
| Technology | 1 |
| Transport | 6 |