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| метод защиты (ssn) | |||
| способ защиты (oleg.vigodsky) | |||
| protection method: 14 phrases in 9 subjects |
| Astronautics | 1 |
| Automobiles | 2 |
| Business | 1 |
| Ecology | 1 |
| GOST | 3 |
| Information security and data protection | 1 |
| Oil and gas technology | 2 |
| Programming | 2 |
| Security systems | 1 |