 |
| |||
| effektivitet; kompetens | |||
| verkningsgrad | |||
| كفاءة: 35 phrases in 11 subjects |
| Accumulators | 2 |
| Antennas and waveguides | 7 |
| Automatic control | 1 |
| Electric traction | 1 |
| Environment | 1 |
| Lighting other than cinema | 3 |
| Mathematics | 5 |
| Sound recording | 4 |
| Telegraphy | 1 |
| Thermal Energy | 3 |
| Vacuum tubes | 7 |