 |
| |||
| signal distance | |||
|
信号距离 : 24 phrases in 7 subjects |
| Agriculture | 1 |
| Air defense | 2 |
| Aviation | 1 |
| Electric machinery | 1 |
| General | 5 |
| Space | 5 |
| Technology | 9 |
|
| |||
| signal distance | |||
|
信号距离 : 24 phrases in 7 subjects |
| Agriculture | 1 |
| Air defense | 2 |
| Aviation | 1 |
| Electric machinery | 1 |
| General | 5 |
| Space | 5 |
| Technology | 9 |