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tubes électroniques | |||
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tube électronique (USA); lampe radio (USA) |
electron tubes : 22 phrases in 7 subjects |
Antennas and waveguides | 3 |
Automated equipment | 1 |
Electronics | 5 |
High energy physics | 3 |
Measuring instruments | 2 |
Nuclear physics | 1 |
Radiation | 7 |