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| English thesaurus | |||
| |||
| SS7 | |||
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Signal System : 53 phrases in 15 subjects |
| Automated equipment | 2 |
| Automobiles | 2 |
| Communications | 22 |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 7 |
| Health care | 1 |
| Information technology | 1 |
| Medical appliances | 1 |
| Microelectronics | 2 |
| Mining | 4 |
| Optics branch of physics | 1 |
| Technology | 2 |
| Telecommunications | 1 |
| Transport | 5 |