 |
| tube cathodique: 66 phrases in 15 subjects |
| Antennas and waveguides | 14 |
| Automated equipment | 1 |
| Chemistry | 1 |
| Communications | 4 |
| Computers | 8 |
| Electronics | 16 |
| Environment | 1 |
| General | 1 |
| Information technology | 12 |
| Measuring instruments | 3 |
| Medical appliances | 1 |
| Natural sciences | 1 |
| Radio | 1 |
| Technology | 1 |
| Vacuum tubes | 1 |