 |
| |||
| frequency of maintenance; frequency support | |||
| frequency maintenance | |||
| поддержание частоты: 8 phrases in 7 subjects |
| Astronautics | 1 |
| Communications | 1 |
| Electronics | 2 |
| Energy industry | 1 |
| Energy system | 1 |
| Stock Exchange | 1 |
| Technology | 1 |
|
| |||
| frequency of maintenance; frequency support | |||
| frequency maintenance | |||
| поддержание частоты: 8 phrases in 7 subjects |
| Astronautics | 1 |
| Communications | 1 |
| Electronics | 2 |
| Energy industry | 1 |
| Energy system | 1 |
| Stock Exchange | 1 |
| Technology | 1 |