| |||
| 幅度脉码调制 | |||
|
amplitude pulse code modulation : 9 phrases in 7 subjects |
| Earth sciences | 1 |
| Electronics | 3 |
| Geophysics | 1 |
| Military | 1 |
| Space | 1 |
| Technology | 1 |
| Telecommunications | 1 |
| |||
| 幅度脉码调制 | |||
|
amplitude pulse code modulation : 9 phrases in 7 subjects |
| Earth sciences | 1 |
| Electronics | 3 |
| Geophysics | 1 |
| Military | 1 |
| Space | 1 |
| Technology | 1 |
| Telecommunications | 1 |