 |
| |||
| hollow cylinder | |||
|
圆筒 体 : 15 phrases in 6 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Mining | 1 |
| Oil / petroleum | 1 |
| Optics branch of physics | 1 |
| Technology | 10 |
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