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Wellenform f |
forme des ondes : 17 phrases in 10 subjects |
Antennas and waveguides | 1 |
Coal | 1 |
Communications | 1 |
Earth sciences | 1 |
Electronics | 5 |
Information technology | 3 |
Measuring instruments | 1 |
Mechanic engineering | 2 |
Medical appliances | 1 |
Радиоактивное излучение | 1 |