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| pivote de acoplamiento | |||
| tablón de anuncios y señalización | |||
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display system : 23 phrases in 8 subjects |
| Communications | 4 |
| Electronics | 1 |
| General | 2 |
| Information technology | 7 |
| Meteorology | 1 |
| Nuclear physics | 1 |
| Rail transport | 1 |
| Transport | 6 |
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