 |
| |||
| average lifetime (ресурс, срок службы) | |||
| mean lifetime | |||
| mean longevity; mean survivorship; ML (mean life) | |||
| mean age | |||
| average life; mean life | |||
| |||
| medium-lived | |||
| средняя долговечность: 22 phrases in 7 subjects |
| Electronics | 1 |
| Firefighting and fire-control systems | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 10 |
| Oil and gas | 1 |
| Quality control and standards | 5 |
| Technology | 3 |