 |
| guidage: 386 phrases in 32 subjects |
| Agriculture | 1 |
| Antennas and waveguides | 3 |
| Astronomy | 8 |
| Chemistry | 9 |
| Coal | 3 |
| Communications | 48 |
| Construction | 2 |
| Earth sciences | 13 |
| Electric traction | 2 |
| Electronics | 9 |
| Energy industry | 2 |
| Environment | 2 |
| General | 27 |
| Health care | 1 |
| Hobbies and pastimes | 1 |
| Industry | 15 |
| Information technology | 9 |
| Labor law | 4 |
| Life sciences | 5 |
| Loading equipment | 2 |
| Materials science | 4 |
| Mechanic engineering | 60 |
| Metallurgy | 40 |
| Natural sciences | 3 |
| Nuclear physics | 1 |
| Piezoelectric crystals | 1 |
| Power system protection | 1 |
| Radio | 1 |
| Scientific | 4 |
| Technology | 2 |
| Thermal Energy | 1 |
| Transport | 102 |