| |||
| 脉冲振幅与相位调制调幅和调相 | |||
| 脉冲幅度与相位调制; 脉冲调幅调相 | |||
| 脉冲幅度和相位调制 | |||
|
pulse amplitude and phase modulation : 2 phrases in 1 subject |
| Electronics | 2 |
| |||
| 脉冲振幅与相位调制调幅和调相 | |||
| 脉冲幅度与相位调制; 脉冲调幅调相 | |||
| 脉冲幅度和相位调制 | |||
|
pulse amplitude and phase modulation : 2 phrases in 1 subject |
| Electronics | 2 |