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| document security (ssn) | |||
| безопасность документов: 18 phrases in 12 subjects |
| Abbreviation | 1 |
| Aviation | 1 |
| Clinical trial | 2 |
| Ecology | 1 |
| Energy industry | 2 |
| Environment | 1 |
| General | 2 |
| Information security and data protection | 2 |
| Military | 3 |
| Production | 1 |
| Security systems | 1 |
| Technology | 1 |