 |
|
Protective : 103 phrases in 28 subjects |
| Acridology | 3 |
| Biotechnology | 1 |
| Cables and cable production | 2 |
| Ecology | 1 |
| Economics | 9 |
| Electric machinery | 19 |
| Electric traction | 2 |
| Electrical engineering | 4 |
| Electricity generation | 4 |
| Electronics | 4 |
| Environment | 1 |
| Food industry | 1 |
| Food service and catering | 1 |
| Forestry | 2 |
| International Monetary Fund | 1 |
| Isolation | 20 |
| Laboratory equipment | 1 |
| Lighting other than cinema | 1 |
| Medical | 2 |
| Nuclear physics | 1 |
| Oil / petroleum | 4 |
| Pest control | 1 |
| Power lines | 1 |
| Radiology | 10 |
| Rail transport | 1 |
| Socialism | 2 |
| Transformers | 3 |
| Welding | 1 |