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| реальная наработка (Alexander Demidov); наработка (Remove and replace magnesium tail booms with more than 400 hours time in service on the effective date of this AD within 100 further hours in service. Alexander Demidov) | |||
| рабочие часы (для кап. ремонта и т.п. Alexander Demidov) | |||
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hours in service : 8 phrases in 5 subjects |
| Electrical engineering | 2 |
| Energy industry | 2 |
| General | 1 |
| Law | 2 |
| Oil / petroleum | 1 |