| |||
| 频率与振幅调制; 调频与调幅 | |||
| 调幅与调频 | |||
|
frequency and amplitude modulation : 4 do fraz, 2 tematyki |
| Elektronika | 3 |
| Technika i technologia | 1 |
| |||
| 频率与振幅调制; 调频与调幅 | |||
| 调幅与调频 | |||
|
frequency and amplitude modulation : 4 do fraz, 2 tematyki |
| Elektronika | 3 |
| Technika i technologia | 1 |