 |
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| 脉码调制-幅度调制 | |||
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pulse code modulation -amplitude modulation : 10 phrases in 8 subjects |
| Earth sciences | 1 | Information technology | 1 | Technology | 1 |
| Electronics | 3 | Military | 1 | Telecommunications | 1 |
| Geophysics | 1 | Space | 1 |
|
| |||
| 脉码调制-幅度调制 | |||
|
pulse code modulation -amplitude modulation : 10 phrases in 8 subjects |
| Earth sciences | 1 | Information technology | 1 | Technology | 1 |
| Electronics | 3 | Military | 1 | Telecommunications | 1 |
| Geophysics | 1 | Space | 1 |