 |
| |||
| вертикальный градиент | |||
|
垂直梯度 : 12 phrases in 4 subjects |
| General | 1 |
| Geology | 2 |
| Oil processing plants | 1 |
| Technology | 8 |
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