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| livello di segnale | |||
| livello del segnale | |||
| signal level: 20 phrases in 7 subjects |
| Communications | 8 |
| Computer numerical control | 1 |
| Electronics | 6 |
| Information technology | 2 |
| Life sciences | 1 |
| Radio | 1 |
| Transport | 1 |
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