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forma d'onda |
waveform : 46 phrases in 10 subjects |
Communications | 12 |
Earth sciences | 1 |
Electric motors | 1 |
Electronics | 24 |
Information technology | 1 |
Magnetics | 1 |
Measuring instruments | 2 |
Mechanic engineering | 2 |
Microsoft | 1 |
Video recording | 1 |