 |
| |||
| 声波探测系统 | |||
| English thesaurus | |||
| |||
| ADS | |||
| Acoustic Detection System: 8 phrases in 6 subjects |
| Air defense | 2 |
| Aviation | 2 |
| Earth sciences | 1 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 1 |
|
| |||
| 声波探测系统 | |||
| English thesaurus | |||
| |||
| ADS | |||
| Acoustic Detection System: 8 phrases in 6 subjects |
| Air defense | 2 |
| Aviation | 2 |
| Earth sciences | 1 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 1 |