| English thesaurus | |||
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| A communication system, using digital codes, which sends alerts automatically over MF, HF and VHF marine radios | |||
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Digital : 31 phrases in 6 subjects |
| Communications | 1 |
| Economics | 6 |
| Employment | 1 |
| Environment | 1 |
| Information technology | 3 |
| Microsoft | 19 |