 |
| |||
| 通风开口 | |||
| 通风孔; 通风口 | |||
|
ventilation opening : 3 phrases in 2 subjects |
| Rail transport | 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