 |
| chauffage électrique: 64 phrases in 15 subjects |
| Astronautics | 1 |
| Automobiles | 1 |
| Aviation | 4 |
| Chemistry | 1 |
| Construction | 17 |
| Electronics | 12 |
| Food industry | 1 |
| Hydraulic engineering | 1 |
| Mechanic engineering | 7 |
| Medical appliances | 3 |
| Metallurgy | 2 |
| Meteorology | 1 |
| Radio | 4 |
| Technology | 8 |
| Welding | 1 |