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| Lorentz gauge | |||
| С -калибровка: 33 phrases in 16 subjects |
| Acoustics | 1 |
| Astronautics | 2 |
| Chemistry | 1 |
| Electronics | 1 |
| Energy industry | 2 |
| General | 1 |
| Genetics | 1 |
| Makarov | 1 |
| Mass media | 8 |
| Metallurgy | 2 |
| Metrology | 2 |
| Military | 1 |
| Roll stock | 1 |
| Spectroscopy | 1 |
| Technology | 7 |
| Telecommunications | 1 |