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| signal | |||
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signal : 35 phrases in 12 subjects |
| Antennas and waveguides | 1 |
| Automatic control | 1 |
| Communications | 6 |
| Electronics | 1 |
| Information technology | 1 |
| Labor law | 1 |
| Magnetics | 8 |
| Medical | 5 |
| Microsoft | 5 |
| Social science | 1 |
| Sound recording | 1 |
| Transport | 4 |
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