| |||
radiofrequency amplifier | |||
★ radio-frequency amplifier | |||
radio frequency amplifier | |||
radio-frequency transmitter |
射 频放大器 : 25 phrases in 9 subjects |
Air defense | 3 |
Aviation | 2 |
Communications | 1 |
Electronics | 5 |
General | 4 |
Physics | 1 |
Space | 4 |
Technology | 4 |
Telecommunications | 1 |