frequency ratio: 41 phrases in 15 subjects |
Antennas and waveguides | 2 |
Astronautics | 1 |
Automobiles | 3 |
Aviation | 1 |
Electrical engineering | 1 |
Electronics | 15 |
Mass media | 1 |
Mathematics | 1 |
Medical | 2 |
Metrology | 1 |
Military | 1 |
Oil and gas | 1 |
Radio | 1 |
Technology | 7 |
Telecommunications | 3 |