 |
| |||
| 残留压力; 燃油系统保持压力 | |||
| rest pressure: 20 phrases in 7 subjects |
| Agriculture | 1 |
| Architecture | 2 |
| Bridge construction | 3 |
| Desert science | 1 |
| Engineering geology | 3 |
| Hydroelectric power stations | 3 |
| Technology | 7 |
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