joint frequency
| phase modulation
| joint frequency | |
| hydroel.st. | 节理频数 |
| oil | 节理频率 |
| phase modulation | |
| auto. | 调相 |
| avia. | 相调制 |
| hydroel.st. од. | 调相 |
| IT | 相位调制 |
| tech. | 相位调节 |
| |||
| 节理频数 | |||
| 节理频率 | |||
| 联合频率 | |||
|
joint frequency : 26 phrases in 11 subjects |
| Air defense | 3 |
| Aviation | 1 |
| Desert science | 1 |
| Economics | 1 |
| Electronics | 7 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Geophysics | 1 |
| Mathematics | 1 |
| Oil / petroleum | 2 |
| Technology | 7 |