 |
| |||
| phase displacement modulation | |||
| phase shift modulation | |||
| 相移调制: 24 phrases in 9 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Earth sciences | 1 |
| Electric machinery | 1 |
| Electronics | 11 |
| Geophysics | 2 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 3 |
|
| |||
| phase displacement modulation | |||
| phase shift modulation | |||
| 相移调制: 24 phrases in 9 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Earth sciences | 1 |
| Electric machinery | 1 |
| Electronics | 11 |
| Geophysics | 2 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 3 |