 |
| |||
| acoustic survey | |||
| sonic velocity measurement | |||
| 声速 测量: 8 phrases in 6 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Nautical | 1 |
| Shipbuilding | 2 |
| Space | 1 |
| Technology | 2 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips