| |||
frequency modulation on the pulse | |||
pulse frequency modulation |
脉冲 调频 : 88 phrases in 13 subjects |
Air defense | 30 |
Aviation | 3 |
Communications | 1 |
Earth sciences | 2 |
Electronics | 18 |
Geophysics | 3 |
Information technology | 2 |
Oil / petroleum | 1 |
Remote sensing | 1 |
Shipbuilding | 1 |
Space | 13 |
Technology | 10 |
Telecommunications | 3 |