 |
| boca: 211 phrases in 24 subjects |
| Agriculture | 22 |
| Astronautics | 1 |
| Chemistry | 4 |
| Coal | 4 |
| Communications | 1 |
| Construction | 7 |
| Cultural studies | 2 |
| Earth sciences | 2 |
| Electronics | 3 |
| Fish farming pisciculture | 5 |
| General | 4 |
| Health care | 3 |
| Hobbies and pastimes | 1 |
| Industry | 84 |
| Life sciences | 4 |
| Materials science | 7 |
| Mechanic engineering | 21 |
| Medical | 7 |
| Metallurgy | 1 |
| Municipal planning | 1 |
| Natural resourses and wildlife conservation | 4 |
| Natural sciences | 6 |
| Oil / petroleum | 1 |
| Transport | 16 |