 |
| |||
| double-strand chain | |||
| 双铰链: 26 phrases in 6 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Technology | 21 |
| Textile industry | 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