 |
| |||
| 流量系数 | |||
| coefficient of flow: 17 phrases in 6 subjects |
| Drilling | 2 |
| Rail transport | 1 |
| Refrigeration | 1 |
| Space | 1 |
| Technology | 10 |
| Wind Energy | 2 |
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