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cathode rays | |||
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cathode ray | |||
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cathode-ray |
raggi catodici: 49 phrases in 12 subjects |
Antennas and waveguides | 8 |
Aviation | 1 |
Communications | 2 |
Electronics | 17 |
Environment | 1 |
Information technology | 7 |
Medical | 3 |
Patents | 1 |
Radio | 2 |
Sound recording | 1 |
Technology | 5 |
Textile industry | 1 |