four-frequency
| reactance amplifier
| four-frequency | |
| gen. | четырёхчастотный |
| reactance amplifier | |
| radiat. | квантовый параметрический усилитель |
| |||
| четырёхчастотный | |||
| четырёхчастотный | |||
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four-frequency : 21 phrases in 6 subjects |
| Communications | 1 |
| Electronics | 8 |
| Mass media | 3 |
| Technology | 4 |
| Telecommunications | 4 |
| Telephony | 1 |