tubes cathodiques : 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 |