 |
| |||
| expansion bend | |||
|
伸缩弯 : 12 phrases in 5 subjects |
| Architecture | 2 |
| Bridge construction | 1 |
| Compressors | 1 |
| Hydroelectric power stations | 1 |
| 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