 |
| 剪切变 形: 20 phrases in 7 subjects |
| Ecology | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 3 |
| Plastics | 1 |
| Polymers | 2 |
| Space | 1 |
| 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