| |||
| 脉冲调制系统 | |||
|
pulse modulation system : 15 phrases in 7 subjects |
| Automated equipment | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 1 |
| Geophysics | 1 |
| Space | 2 |
| Technology | 8 |
| |||
| 脉冲调制系统 | |||
|
pulse modulation system : 15 phrases in 7 subjects |
| Automated equipment | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 1 |
| Geophysics | 1 |
| Space | 2 |
| Technology | 8 |