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| English thesaurus | |||
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| UDT (DB) | |||
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| user defined data type (ssn) | |||
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| UDD | |||
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User-defined : 35 phrases in 10 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Business | 1 |
| Electronics | 7 |
| General | 1 |
| Information technology | 11 |
| Metallurgy | 1 |
| Multimedia | 1 |
| Technology | 4 |
| Telecommunications | 7 |