| русский | rus-000 |
| резервный блок | |
| English | eng-000 | backup block |
| English | eng-000 | redundant block |
| English | eng-000 | reserve unit |
| English | eng-000 | spare block |
| English | eng-000 | spare unit |
| English | eng-000 | stand-by unit |
| English | eng-000 | standby block |
| English | eng-000 | standby unit |