 |
| |||
| redundant | |||
| back-up component | |||
| reserve component | |||
| redundant element | |||
| standby; spare element | |||
| back-up element; unit in standby; backup unit | |||
| duplicate part; redundant component; redundant unit; reserve unit; standby unit; supporting unit; spare unit | |||
emergency cell; backup element; backup component; redundant element (Элемент, предназначенный для выполнения функций основного элемента в случае отказа последнего  cntd.ru Natalya Rovina) | |||
| резервный элемент: 18 phrases in 6 subjects |
| Electronics | 1 |
| Information technology | 1 |
| Oil / petroleum | 6 |
| Oil and gas | 2 |
| Quality control and standards | 7 |
| Telecommunications | 1 |