H: 56 phrases in 16 subjects |
Antennas and waveguides | 15 |
Chemistry | 6 |
Construction | 6 |
Ecology | 1 |
Electronics | 1 |
Food industry | 3 |
General | 6 |
Health care | 6 |
Medical | 2 |
Natural sciences | 1 |
Nuclear physics | 1 |
Obsolete / dated | 1 |
Politics | 1 |
Power lines | 2 |
Telecommunications | 1 |
Transport | 3 |