 |
| |||
| FDS system; frequency division system; frequency-division switching system; frequency-division system | |||
|
Frequenzmodulationssystem : 1 短语, 1 学科 |
| 通讯 | 1 |
|
| |||
| FDS system; frequency division system; frequency-division switching system; frequency-division system | |||
|
Frequenzmodulationssystem : 1 短语, 1 学科 |
| 通讯 | 1 |