| English | eng-000 |
| preventive overhaul | |
| 普通话 | cmn-000 | 定期修理 |
| 普通话 | cmn-000 | 预防性修理 |
| English | eng-000 | periodic repair |
| English | eng-000 | preventive repair |
| English | eng-000 | preventive repairing |
| English | eng-000 | scheduled repair |
| русский | rus-000 | планово-предупредительный ремонт |