 |
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| repair frequency (ssn) | |||
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| renewal rate | |||
| частота восстановления: 21 phrases in 12 subjects |
| Antennas and waveguides | 1 |
| Cardiology | 1 |
| Communications | 1 |
| Electronics | 1 |
| Energy system | 1 |
| Information technology | 1 |
| Mass media | 4 |
| Medical | 1 |
| Metrology | 1 |
| Occupational health & safety | 2 |
| Technology | 3 |
| Telecommunications | 4 |