 |
| |||
| 密闭循环系统 | |||
| 闭锁循环系统 | |||
|
closed circulation system : 4 phrases in 4 subjects |
| Business | 1 |
| Electronics | 1 |
| Metallurgy | 1 |
| Technology | 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