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boîtier de signalisation | |||
signaleur m; unité de signalisation | |||
trame sémaphore |
unità di segnalazione: 27 phrases in 7 subjects |
Communications | 6 |
Earth sciences | 2 |
Electronics | 8 |
Information technology | 1 |
Technology | 1 |
Telecommunications | 8 |
Transport | 1 |