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| certificate of clearance (к = for Alexander Demidov); clearance certificate (more hits Alexander Demidov) | |||
| competency certificate | |||
| work permit (palomnik) | |||
| competency certificate (к техническому обслуживанию) | |||
| competency certificate (напр., к техническому обслуживанию) | |||
| свидетельство о допуске: 12 phrases in 7 subjects |
| Architecture | 1 |
| Aviation | 5 |
| Aviation medicine | 1 |
| Energy industry | 1 |
| Law | 1 |
| Medical | 2 |
| Military | 1 |