 |
| trou: 70 phrases in 18 subjects |
| Analytical chemistry | 1 |
| Antennas and waveguides | 1 |
| Building materials | 2 |
| Coal | 2 |
| Construction | 38 |
| Criminal law | 3 |
| Electrical engineering | 2 |
| Electronics | 1 |
| Forestry | 1 |
| Machinery and mechanisms | 1 |
| Metallurgy | 2 |
| Mining | 6 |
| Physics | 1 |
| Printed circuit boards | 4 |
| Semiconductors | 1 |
| Sound recording | 1 |
| Technology | 1 |
| Thermal Energy | 2 |