| |||
| 脉宽调制 | |||
|
length-pulse modulation : 19 phrases in 9 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Earth sciences | 1 |
| Electronics | 5 |
| Geophysics | 2 |
| Information technology | 2 |
| Physics | 1 |
| Space | 3 |
| Technology | 2 |
| |||
| 脉宽调制 | |||
|
length-pulse modulation : 19 phrases in 9 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Earth sciences | 1 |
| Electronics | 5 |
| Geophysics | 2 |
| Information technology | 2 |
| Physics | 1 |
| Space | 3 |
| Technology | 2 |