 |
| |||
| h.f. valve (high-frequency valve); high-frequency valve (h.f. valve); r-f tube (radio-frequency tube) | |||
| radio-frequency tube | |||
| high-frequency tube | |||
| высокочастотная лампа: 10 phrases in 6 subjects |
| Analytical chemistry | 3 |
| Electronics | 2 |
| General | 1 |
| Makarov | 1 |
| Metrology | 1 |
| Technology | 2 |