 |
| |||
| upgrading | |||
| повышение категории: 19 phrases in 5 subjects |
| General | 1 |
| Hotel industry | 3 |
| Information security and data protection | 1 |
| Military | 11 |
| Security systems | 3 |
|
| |||
| upgrading | |||
| повышение категории: 19 phrases in 5 subjects |
| General | 1 |
| Hotel industry | 3 |
| Information security and data protection | 1 |
| Military | 11 |
| Security systems | 3 |