 |
| |||
| 预备阶段; 预先阶段 | |||
| 预级; 预启动级 (大型液体火箭发动机启动的中间级) | |||
| pre -stage: 13 phrases in 8 subjects |
| Agriculture | 5 |
| Animal husbandry | 2 |
| Artificial intelligence | 1 |
| Consulting | 1 |
| Heavy equipment vehicles | 1 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Surgery | 1 |
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