 |
| |||
| AC frequency (financial-engineer) | |||
| alternating current frequency | |||
| частота переменного тока: 42 phrases in 16 subjects |
| American usage, not spelling | 1 |
| Astronautics | 7 |
| Electrical engineering | 3 |
| Electrochemistry | 1 |
| Geophysics | 2 |
| Makarov | 1 |
| Mass media | 6 |
| Measuring instruments | 3 |
| Mechanic engineering | 1 |
| Mechanics | 1 |
| Metallurgy | 1 |
| Metrology | 1 |
| Military | 1 |
| Production | 1 |
| Technology | 7 |
| Telecommunications | 5 |