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| keep in working order (Denis Lebedev) | |||
| keep humming | |||
| keep sth. in working order (keep the equipment / smoke detectors in working order • Walking canes are fairly maintenance-free devices, with little extra care necessary to keep them in working order. -- поддерживать в рабочем / исправном состоянии ART Vancouver) | |||
| keep in repair | |||
| maintain | |||
| maintain in a proper state (Yeldar Azanbayev) | |||
| содержать в исправном состоянии: 8 phrases in 5 subjects |
| Architecture | 1 |
| Armored vehicles | 2 |
| General | 1 |
| Logistics | 1 |
| Military | 3 |