| русский | rus-000 |
| ненагруженный резерв | |
| English | eng-000 | SB |
| English | eng-000 | cold standby |
| English | eng-000 | inactive standby |
| English | eng-000 | stand-by redundancy |
| English | eng-000 | standby |
| English | eng-000 | standby spare |
| English | eng-000 | stock spare |
| English | eng-000 | unloaded reserve |