|
line frequency : 26 phrases in 11 subjects |
| Astronomy | 1 |
| Electronics | 5 |
| General | 1 |
| Measuring instruments | 1 |
| Metallurgy | 1 |
| Microsoft | 1 |
| Optics branch of physics | 4 |
| Physics | 1 |
| Technology | 8 |
| Telecommunications | 2 |
| Telegraphy | 1 |
|
line frequency : 26 phrases in 11 subjects |
| Astronomy | 1 |
| Electronics | 5 |
| General | 1 |
| Measuring instruments | 1 |
| Metallurgy | 1 |
| Microsoft | 1 |
| Optics branch of physics | 4 |
| Physics | 1 |
| Technology | 8 |
| Telecommunications | 2 |
| Telegraphy | 1 |