| |||
| 频率对比 | |||
|
frequency correlation : 7 phrases in 7 subjects |
| Air defense | 1 |
| Artificial intelligence | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Rail transport | 1 |
| Securities | 1 |
| Surveying | 1 |
| |||
| 频率对比 | |||
|
frequency correlation : 7 phrases in 7 subjects |
| Air defense | 1 |
| Artificial intelligence | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Rail transport | 1 |
| Securities | 1 |
| Surveying | 1 |