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| часы наработки (Typically, this type of engine is overhauled after 17000 hours in operation. Alexander Demidov); время наработки (Forward Speed, Engine RPM, up to 2 Shaft Speed Inputs. (depending on the particular installation), and Engine Hours in operation. Alexander Demidov) | |||
| рабочие часы (Alexander Demidov) | |||
| hours in operation: 3 phrases in 2 subjects |
| Logistics | 1 |
| Makarov | 2 |