 |
| |||
| 真空管路; 示功图真空线 | |||
| 真空管线; 真空管道 | |||
| 真空管 (线) | |||
| vacuum line: 18 phrases in 6 subjects |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Rail transport | 2 |
| Refrigeration | 1 |
| Shipbuilding | 2 |
| 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