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| untere Grenzfrequenz | |||
| нижняя частота: 55 phrases in 12 subjects |
| British usage, not spelling | 2 |
| Computers | 1 |
| Electronics | 18 |
| Medical | 1 |
| Military | 1 |
| Optics branch of physics | 1 |
| Quantum electronics | 2 |
| Radio | 19 |
| Sound recording | 2 |
| Technology | 5 |
| Telecommunications | 1 |
| Радиоактивное излучение | 2 |
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