 |
| |||
| gas sealing | |||
|
气体密 封 : 25 phrases in 7 subjects |
| Automobiles | 1 |
| Chemistry | 1 |
| Electronics | 12 |
| Metallurgy | 4 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 5 |
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