 |
|
low-frequency : 62 phrases in 16 subjects |
| Communications | 24 |
| Earth sciences | 1 |
| Electric motors | 1 |
| Electronics | 18 |
| Environment | 1 |
| Fishery fishing industry | 1 |
| Information technology | 2 |
| Mechanic engineering | 1 |
| Medical | 2 |
| Metallurgy | 1 |
| Meteorology | 1 |
| Natural sciences | 1 |
| Radio | 1 |
| Remote sensing | 1 |
| Technology | 4 |
| Transport | 2 |