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 |